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Finding the Fourth Proportional to 437,989.52, 656,984.28 and 105,565.52

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Solution

The fourth proportional to 437,989.52, 656,984.28 and 105,565.52 is: 158,348.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,989.52 : 656,984.28 = 105,565.52 : x
  2. Step 2: Convert to fraction form
    437,989.52/656,984.28 = 105,565.52/x
  3. Step 3: Cross multiply
    437,989.52x = 656,984.28 × 105,565.52
  4. Step 4: Simplify right side
    437,989.52x = 69,354,887,150.03
  5. Step 5: Solve for x
    x = 69,354,887,150.03/437,989.52
  6. Step 6: Final answer
    x = 158,348.28

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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.