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Finding the Fourth Proportional to 437,565.53, 656,348.31 and 105,141.53

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Solution

The fourth proportional to 437,565.53, 656,348.31 and 105,141.53 is: 157,712.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,565.53 : 656,348.31 = 105,141.53 : x
  2. Step 2: Convert to fraction form
    437,565.53/656,348.31 = 105,141.53/x
  3. Step 3: Cross multiply
    437,565.53x = 656,348.31 × 105,141.53
  4. Step 4: Simplify right side
    437,565.53x = 69,009,465,526.31
  5. Step 5: Solve for x
    x = 69,009,465,526.31/437,565.53
  6. Step 6: Final answer
    x = 157,712.30

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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.