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Finding the Fourth Proportional to 250,086.11, 345,118.82 and 136,908.86

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Solution

The fourth proportional to 250,086.11, 345,118.82 and 136,908.86 is: 188,934.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,086.11 : 345,118.82 = 136,908.86 : x
  2. Step 2: Convert to fraction form
    250,086.11/345,118.82 = 136,908.86/x
  3. Step 3: Cross multiply
    250,086.11x = 345,118.82 × 136,908.86
  4. Step 4: Simplify right side
    250,086.11x = 47,249,821,800.61
  5. Step 5: Solve for x
    x = 47,249,821,800.61/250,086.11
  6. Step 6: Final answer
    x = 188,934.21

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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.