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Finding the Fourth Proportional to 269,279.34, 403,929.26 and 100,781.93

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Solution

The fourth proportional to 269,279.34, 403,929.26 and 100,781.93 is: 151,176.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,279.34 : 403,929.26 = 100,781.93 : x
  2. Step 2: Convert to fraction form
    269,279.34/403,929.26 = 100,781.93/x
  3. Step 3: Cross multiply
    269,279.34x = 403,929.26 × 100,781.93
  4. Step 4: Simplify right side
    269,279.34x = 40,708,767,882.72
  5. Step 5: Solve for x
    x = 40,708,767,882.72/269,279.34
  6. Step 6: Final answer
    x = 151,176.72

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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.