Home / 742,209.40-1,113,168.30-243,573.40

Finding the Fourth Proportional to 742,209.40, 1,113,168.30 and 243,573.40

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Solution

The fourth proportional to 742,209.40, 1,113,168.30 and 243,573.40 is: 365,312.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,209.40 : 1,113,168.30 = 243,573.40 : x
  2. Step 2: Convert to fraction form
    742,209.40/1,113,168.30 = 243,573.40/x
  3. Step 3: Cross multiply
    742,209.40x = 1,113,168.30 × 243,573.40
  4. Step 4: Simplify right side
    742,209.40x = 271,138,187,603.22
  5. Step 5: Solve for x
    x = 271,138,187,603.22/742,209.40
  6. Step 6: Final answer
    x = 365,312.25

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Double scale
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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.