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Finding the Fourth Proportional to 224,706.72, 310,092.60 and 129,213.72

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Solution

The fourth proportional to 224,706.72, 310,092.60 and 129,213.72 is: 178,313.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,706.72 : 310,092.60 = 129,213.72 : x
  2. Step 2: Convert to fraction form
    224,706.72/310,092.60 = 129,213.72/x
  3. Step 3: Cross multiply
    224,706.72x = 310,092.60 × 129,213.72
  4. Step 4: Simplify right side
    224,706.72x = 40,068,218,390.47
  5. Step 5: Solve for x
    x = 40,068,218,390.47/224,706.72
  6. Step 6: Final answer
    x = 178,313.40

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1.5x scale

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.