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Finding the Fourth Proportional to 437,263.80, 656,049.30 and 156,790.20

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Solution

The fourth proportional to 437,263.80, 656,049.30 and 156,790.20 is: 235,240.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,263.80 : 656,049.30 = 156,790.20 : x
  2. Step 2: Convert to fraction form
    437,263.80/656,049.30 = 156,790.20/x
  3. Step 3: Cross multiply
    437,263.80x = 656,049.30 × 156,790.20
  4. Step 4: Simplify right side
    437,263.80x = 102,862,100,956.86
  5. Step 5: Solve for x
    x = 102,862,100,956.86/437,263.80
  6. Step 6: Final answer
    x = 235,240.38

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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.