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Finding the Fourth Proportional to 556,154.40, 834,231.60 and 156,808.20

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Solution

The fourth proportional to 556,154.40, 834,231.60 and 156,808.20 is: 235,212.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,154.40 : 834,231.60 = 156,808.20 : x
  2. Step 2: Convert to fraction form
    556,154.40/834,231.60 = 156,808.20/x
  3. Step 3: Cross multiply
    556,154.40x = 834,231.60 × 156,808.20
  4. Step 4: Simplify right side
    556,154.40x = 130,814,355,579.12
  5. Step 5: Solve for x
    x = 130,814,355,579.12/556,154.40
  6. Step 6: Final answer
    x = 235,212.30

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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.