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Finding the Fourth Proportional to 372,543.70, 558,898.88 and 135,886.38

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Solution

The fourth proportional to 372,543.70, 558,898.88 and 135,886.38 is: 203,859.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,543.70 : 558,898.88 = 135,886.38 : x
  2. Step 2: Convert to fraction form
    372,543.70/558,898.88 = 135,886.38/x
  3. Step 3: Cross multiply
    372,543.70x = 558,898.88 × 135,886.38
  4. Step 4: Simplify right side
    372,543.70x = 75,946,747,326.22
  5. Step 5: Solve for x
    x = 75,946,747,326.22/372,543.70
  6. Step 6: Final answer
    x = 203,859.97

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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.