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Finding the Fourth Proportional to 437,318.10, 655,977.15 and 156,798.90

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Solution

The fourth proportional to 437,318.10, 655,977.15 and 156,798.90 is: 235,198.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,318.10 : 655,977.15 = 156,798.90 : x
  2. Step 2: Convert to fraction form
    437,318.10/655,977.15 = 156,798.90/x
  3. Step 3: Cross multiply
    437,318.10x = 655,977.15 × 156,798.90
  4. Step 4: Simplify right side
    437,318.10x = 102,856,495,545.14
  5. Step 5: Solve for x
    x = 102,856,495,545.14/437,318.10
  6. Step 6: Final answer
    x = 235,198.35

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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.