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Finding the Fourth Proportional to 250,086.61, 345,119.51 and 136,909.36

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Solution

The fourth proportional to 250,086.61, 345,119.51 and 136,909.36 is: 188,934.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,086.61 : 345,119.51 = 136,909.36 : x
  2. Step 2: Convert to fraction form
    250,086.61/345,119.51 = 136,909.36/x
  3. Step 3: Cross multiply
    250,086.61x = 345,119.51 × 136,909.36
  4. Step 4: Simplify right side
    250,086.61x = 47,250,088,827.47
  5. Step 5: Solve for x
    x = 47,250,088,827.47/250,086.61
  6. Step 6: Final answer
    x = 188,934.90

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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.