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Finding the Fourth Proportional to 372,657.24, 558,171.12 and 288,195.30

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Solution

The fourth proportional to 372,657.24, 558,171.12 and 288,195.30 is: 431,662.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,657.24 : 558,171.12 = 288,195.30 : x
  2. Step 2: Convert to fraction form
    372,657.24/558,171.12 = 288,195.30/x
  3. Step 3: Cross multiply
    372,657.24x = 558,171.12 × 288,195.30
  4. Step 4: Simplify right side
    372,657.24x = 160,862,293,379.74
  5. Step 5: Solve for x
    x = 160,862,293,379.74/372,657.24
  6. Step 6: Final answer
    x = 431,662.87

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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.