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Finding the Fourth Proportional to 224,599.80, 310,007.34 and 129,117

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Solution

The fourth proportional to 224,599.80, 310,007.34 and 129,117 is: 178,215.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,599.80 : 310,007.34 = 129,117 : x
  2. Step 2: Convert to fraction form
    224,599.80/310,007.34 = 129,117/x
  3. Step 3: Cross multiply
    224,599.80x = 310,007.34 × 129,117
  4. Step 4: Simplify right side
    224,599.80x = 40,027,217,718.78
  5. Step 5: Solve for x
    x = 40,027,217,718.78/224,599.80
  6. Step 6: Final answer
    x = 178,215.73

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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.