Home / 266,279.89-399,618.21-195,385.72

Finding the Fourth Proportional to 266,279.89, 399,618.21 and 195,385.72

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Solution

The fourth proportional to 266,279.89, 399,618.21 and 195,385.72 is: 293,224.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,279.89 : 399,618.21 = 195,385.72 : x
  2. Step 2: Convert to fraction form
    266,279.89/399,618.21 = 195,385.72/x
  3. Step 3: Cross multiply
    266,279.89x = 399,618.21 × 195,385.72
  4. Step 4: Simplify right side
    266,279.89x = 78,079,691,685.96
  5. Step 5: Solve for x
    x = 78,079,691,685.96/266,279.89
  6. Step 6: Final answer
    x = 293,224.14

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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.