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Finding the Fourth Proportional to 391,500.58, 587,338.38 and 125,277.08

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Solution

The fourth proportional to 391,500.58, 587,338.38 and 125,277.08 is: 187,943.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,500.58 : 587,338.38 = 125,277.08 : x
  2. Step 2: Convert to fraction form
    391,500.58/587,338.38 = 125,277.08/x
  3. Step 3: Cross multiply
    391,500.58x = 587,338.38 × 125,277.08
  4. Step 4: Simplify right side
    391,500.58x = 73,580,037,218.33
  5. Step 5: Solve for x
    x = 73,580,037,218.33/391,500.58
  6. Step 6: Final answer
    x = 187,943.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.