Home / 218,719.17-328,078.89-60,951.78

Finding the Fourth Proportional to 218,719.17, 328,078.89 and 60,951.78

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Solution

The fourth proportional to 218,719.17, 328,078.89 and 60,951.78 is: 91,427.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,719.17 : 328,078.89 = 60,951.78 : x
  2. Step 2: Convert to fraction form
    218,719.17/328,078.89 = 60,951.78/x
  3. Step 3: Cross multiply
    218,719.17x = 328,078.89 × 60,951.78
  4. Step 4: Simplify right side
    218,719.17x = 19,996,992,325.92
  5. Step 5: Solve for x
    x = 19,996,992,325.92/218,719.17
  6. Step 6: Final answer
    x = 91,427.71

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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.