Home / 312,387.20-468,598.94-87,765.15

Finding the Fourth Proportional to 312,387.20, 468,598.94 and 87,765.15

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Solution

The fourth proportional to 312,387.20, 468,598.94 and 87,765.15 is: 131,652.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,387.20 : 468,598.94 = 87,765.15 : x
  2. Step 2: Convert to fraction form
    312,387.20/468,598.94 = 87,765.15/x
  3. Step 3: Cross multiply
    312,387.20x = 468,598.94 × 87,765.15
  4. Step 4: Simplify right side
    312,387.20x = 41,126,657,906.48
  5. Step 5: Solve for x
    x = 41,126,657,906.48/312,387.20
  6. Step 6: Final answer
    x = 131,652.83

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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.