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Finding the Fourth Proportional to 437,155.92, 655,735.10 and 121,613.13

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Solution

The fourth proportional to 437,155.92, 655,735.10 and 121,613.13 is: 182,420.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,155.92 : 655,735.10 = 121,613.13 : x
  2. Step 2: Convert to fraction form
    437,155.92/655,735.10 = 121,613.13/x
  3. Step 3: Cross multiply
    437,155.92x = 655,735.10 × 121,613.13
  4. Step 4: Simplify right side
    437,155.92x = 79,745,997,353.80
  5. Step 5: Solve for x
    x = 79,745,997,353.80/437,155.92
  6. Step 6: Final answer
    x = 182,420.03

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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.