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Finding the Fourth Proportional to 253,862.91, 380,857.69 and 179,129.17

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Solution

The fourth proportional to 253,862.91, 380,857.69 and 179,129.17 is: 268,738.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,862.91 : 380,857.69 = 179,129.17 : x
  2. Step 2: Convert to fraction form
    253,862.91/380,857.69 = 179,129.17/x
  3. Step 3: Cross multiply
    253,862.91x = 380,857.69 × 179,129.17
  4. Step 4: Simplify right side
    253,862.91x = 68,222,719,993.53
  5. Step 5: Solve for x
    x = 68,222,719,993.53/253,862.91
  6. Step 6: Final answer
    x = 268,738.44

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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.