Home / 266,839.38-399,733.08-216,975.78

Finding the Fourth Proportional to 266,839.38, 399,733.08 and 216,975.78

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Solution

The fourth proportional to 266,839.38, 399,733.08 and 216,975.78 is: 325,035.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,839.38 : 399,733.08 = 216,975.78 : x
  2. Step 2: Convert to fraction form
    266,839.38/399,733.08 = 216,975.78/x
  3. Step 3: Cross multiply
    266,839.38x = 399,733.08 × 216,975.78
  4. Step 4: Simplify right side
    266,839.38x = 86,732,396,824.80
  5. Step 5: Solve for x
    x = 86,732,396,824.80/266,839.38
  6. Step 6: Final answer
    x = 325,035.97

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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.