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Finding the Fourth Proportional to 224.62, 309.96 and 125.04

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Solution

The fourth proportional to 224.62, 309.96 and 125.04 is: 172.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.62 : 309.96 = 125.04 : x
  2. Step 2: Convert to fraction form
    224.62/309.96 = 125.04/x
  3. Step 3: Cross multiply
    224.62x = 309.96 × 125.04
  4. Step 4: Simplify right side
    224.62x = 38,756.62
  5. Step 5: Solve for x
    x = 38,756.62/224.62
  6. Step 6: Final answer
    x = 172.54

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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.