Home / 742,136.30-1,113,204.45-243,500.30

Finding the Fourth Proportional to 742,136.30, 1,113,204.45 and 243,500.30

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Solution

The fourth proportional to 742,136.30, 1,113,204.45 and 243,500.30 is: 365,250.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,136.30 : 1,113,204.45 = 243,500.30 : x
  2. Step 2: Convert to fraction form
    742,136.30/1,113,204.45 = 243,500.30/x
  3. Step 3: Cross multiply
    742,136.30x = 1,113,204.45 × 243,500.30
  4. Step 4: Simplify right side
    742,136.30x = 271,065,617,536.34
  5. Step 5: Solve for x
    x = 271,065,617,536.34/742,136.30
  6. Step 6: Final answer
    x = 365,250.45

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Half scale
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Double scale
Find fourth proportional to 742,137.30, 1,113,205.95 and 243,501.30
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.