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Finding the Fourth Proportional to 251,725.52, 347,373.96 and 138,545.84

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Solution

The fourth proportional to 251,725.52, 347,373.96 and 138,545.84 is: 191,189.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,725.52 : 347,373.96 = 138,545.84 : x
  2. Step 2: Convert to fraction form
    251,725.52/347,373.96 = 138,545.84/x
  3. Step 3: Cross multiply
    251,725.52x = 347,373.96 × 138,545.84
  4. Step 4: Simplify right side
    251,725.52x = 48,127,217,082.33
  5. Step 5: Solve for x
    x = 48,127,217,082.33/251,725.52
  6. Step 6: Final answer
    x = 191,189.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.