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Finding the Fourth Proportional to 224,883.81, 310,375.40 and 129,371.85

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Solution

The fourth proportional to 224,883.81, 310,375.40 and 129,371.85 is: 178,553.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,883.81 : 310,375.40 = 129,371.85 : x
  2. Step 2: Convert to fraction form
    224,883.81/310,375.40 = 129,371.85/x
  3. Step 3: Cross multiply
    224,883.81x = 310,375.40 × 129,371.85
  4. Step 4: Simplify right side
    224,883.81x = 40,153,839,045.63
  5. Step 5: Solve for x
    x = 40,153,839,045.63/224,883.81
  6. Step 6: Final answer
    x = 178,553.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.