Home / 218,926.16-328,438.46-69,175.44

Finding the Fourth Proportional to 218,926.16, 328,438.46 and 69,175.44

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Solution

The fourth proportional to 218,926.16, 328,438.46 and 69,175.44 is: 103,778.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,926.16 : 328,438.46 = 69,175.44 : x
  2. Step 2: Convert to fraction form
    218,926.16/328,438.46 = 69,175.44/x
  3. Step 3: Cross multiply
    218,926.16x = 328,438.46 × 69,175.44
  4. Step 4: Simplify right side
    218,926.16x = 22,719,874,983.42
  5. Step 5: Solve for x
    x = 22,719,874,983.42/218,926.16
  6. Step 6: Final answer
    x = 103,778.71

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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.