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Finding the Fourth Proportional to 437,457.10, 656,185.65 and 156,937.90

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Solution

The fourth proportional to 437,457.10, 656,185.65 and 156,937.90 is: 235,406.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,457.10 : 656,185.65 = 156,937.90 : x
  2. Step 2: Convert to fraction form
    437,457.10/656,185.65 = 156,937.90/x
  3. Step 3: Cross multiply
    437,457.10x = 656,185.65 × 156,937.90
  4. Step 4: Simplify right side
    437,457.10x = 102,980,397,921.14
  5. Step 5: Solve for x
    x = 102,980,397,921.14/437,457.10
  6. Step 6: Final answer
    x = 235,406.85

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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.