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Finding the Fourth Proportional to 487,059.44, 730,245.72 and 187,288.16

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Solution

The fourth proportional to 487,059.44, 730,245.72 and 187,288.16 is: 280,800.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,059.44 : 730,245.72 = 187,288.16 : x
  2. Step 2: Convert to fraction form
    487,059.44/730,245.72 = 187,288.16/x
  3. Step 3: Cross multiply
    487,059.44x = 730,245.72 × 187,288.16
  4. Step 4: Simplify right side
    487,059.44x = 136,766,377,246.68
  5. Step 5: Solve for x
    x = 136,766,377,246.68/487,059.44
  6. Step 6: Final answer
    x = 280,800.18

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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.