Home / 266,371.88-399,627.07-79,383.38

Finding the Fourth Proportional to 266,371.88, 399,627.07 and 79,383.38

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Solution

The fourth proportional to 266,371.88, 399,627.07 and 79,383.38 is: 119,095.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,371.88 : 399,627.07 = 79,383.38 : x
  2. Step 2: Convert to fraction form
    266,371.88/399,627.07 = 79,383.38/x
  3. Step 3: Cross multiply
    266,371.88x = 399,627.07 × 79,383.38
  4. Step 4: Simplify right side
    266,371.88x = 31,723,745,359.50
  5. Step 5: Solve for x
    x = 31,723,745,359.50/266,371.88
  6. Step 6: Final answer
    x = 119,095.70

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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.