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Finding the Fourth Proportional to 437,140.62, 655,820.28 and 137,609.10

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Solution

The fourth proportional to 437,140.62, 655,820.28 and 137,609.10 is: 206,448.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,140.62 : 655,820.28 = 137,609.10 : x
  2. Step 2: Convert to fraction form
    437,140.62/655,820.28 = 137,609.10/x
  3. Step 3: Cross multiply
    437,140.62x = 655,820.28 × 137,609.10
  4. Step 4: Simplify right side
    437,140.62x = 90,246,838,492.55
  5. Step 5: Solve for x
    x = 90,246,838,492.55/437,140.62
  6. Step 6: Final answer
    x = 206,448.07

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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.