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Finding the Fourth Proportional to 250,691.58, 345,898.41 and 148,665.20

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Solution

The fourth proportional to 250,691.58, 345,898.41 and 148,665.20 is: 205,124.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,691.58 : 345,898.41 = 148,665.20 : x
  2. Step 2: Convert to fraction form
    250,691.58/345,898.41 = 148,665.20/x
  3. Step 3: Cross multiply
    250,691.58x = 345,898.41 × 148,665.20
  4. Step 4: Simplify right side
    250,691.58x = 51,423,054,572.84
  5. Step 5: Solve for x
    x = 51,423,054,572.84/250,691.58
  6. Step 6: Final answer
    x = 205,124.78

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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.