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Finding the Fourth Proportional to 224.84, 337.10 and 143.72

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Solution

The fourth proportional to 224.84, 337.10 and 143.72 is: 215.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.84 : 337.10 = 143.72 : x
  2. Step 2: Convert to fraction form
    224.84/337.10 = 143.72/x
  3. Step 3: Cross multiply
    224.84x = 337.10 × 143.72
  4. Step 4: Simplify right side
    224.84x = 48,448.01
  5. Step 5: Solve for x
    x = 48,448.01/224.84
  6. Step 6: Final answer
    x = 215.48

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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.