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Finding the Fourth Proportional to 250,691, 345,953.60 and 137,514.04

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Solution

The fourth proportional to 250,691, 345,953.60 and 137,514.04 is: 189,769.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,691 : 345,953.60 = 137,514.04 : x
  2. Step 2: Convert to fraction form
    250,691/345,953.60 = 137,514.04/x
  3. Step 3: Cross multiply
    250,691x = 345,953.60 × 137,514.04
  4. Step 4: Simplify right side
    250,691x = 47,573,477,188.54
  5. Step 5: Solve for x
    x = 47,573,477,188.54/250,691
  6. Step 6: Final answer
    x = 189,769.39

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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.