Home / 215,382.38-323,065.58-87,294.25

Finding the Fourth Proportional to 215,382.38, 323,065.58 and 87,294.25

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Solution

The fourth proportional to 215,382.38, 323,065.58 and 87,294.25 is: 130,938.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,382.38 : 323,065.58 = 87,294.25 : x
  2. Step 2: Convert to fraction form
    215,382.38/323,065.58 = 87,294.25/x
  3. Step 3: Cross multiply
    215,382.38x = 323,065.58 × 87,294.25
  4. Step 4: Simplify right side
    215,382.38x = 28,201,766,262.78
  5. Step 5: Solve for x
    x = 28,201,766,262.78/215,382.38
  6. Step 6: Final answer
    x = 130,938.13

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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.