Home / 218,722.18-328,083.40-60,954.78

Finding the Fourth Proportional to 218,722.18, 328,083.40 and 60,954.78

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Solution

The fourth proportional to 218,722.18, 328,083.40 and 60,954.78 is: 91,432.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,722.18 : 328,083.40 = 60,954.78 : x
  2. Step 2: Convert to fraction form
    218,722.18/328,083.40 = 60,954.78/x
  3. Step 3: Cross multiply
    218,722.18x = 328,083.40 × 60,954.78
  4. Step 4: Simplify right side
    218,722.18x = 19,998,251,468.65
  5. Step 5: Solve for x
    x = 19,998,251,468.65/218,722.18
  6. Step 6: Final answer
    x = 91,432.21

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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.