Home / 218,841.28-328,306.08-69,104.96

Finding the Fourth Proportional to 218,841.28, 328,306.08 and 69,104.96

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Solution

The fourth proportional to 218,841.28, 328,306.08 and 69,104.96 is: 103,671.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,841.28 : 328,306.08 = 69,104.96 : x
  2. Step 2: Convert to fraction form
    218,841.28/328,306.08 = 69,104.96/x
  3. Step 3: Cross multiply
    218,841.28x = 328,306.08 × 69,104.96
  4. Step 4: Simplify right side
    218,841.28x = 22,687,578,526.16
  5. Step 5: Solve for x
    x = 22,687,578,526.16/218,841.28
  6. Step 6: Final answer
    x = 103,671.38

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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.