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Finding the Fourth Proportional to 285,901.01, 428,687.43 and 108,294.74

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Solution

The fourth proportional to 285,901.01, 428,687.43 and 108,294.74 is: 162,379.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,901.01 : 428,687.43 = 108,294.74 : x
  2. Step 2: Convert to fraction form
    285,901.01/428,687.43 = 108,294.74/x
  3. Step 3: Cross multiply
    285,901.01x = 428,687.43 × 108,294.74
  4. Step 4: Simplify right side
    285,901.01x = 46,424,591,629.68
  5. Step 5: Solve for x
    x = 46,424,591,629.68/285,901.01
  6. Step 6: Final answer
    x = 162,379.95

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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.