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Finding the Fourth Proportional to 224.99, 337.27 and 115.31

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Solution

The fourth proportional to 224.99, 337.27 and 115.31 is: 172.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.99 : 337.27 = 115.31 : x
  2. Step 2: Convert to fraction form
    224.99/337.27 = 115.31/x
  3. Step 3: Cross multiply
    224.99x = 337.27 × 115.31
  4. Step 4: Simplify right side
    224.99x = 38,888.63
  5. Step 5: Solve for x
    x = 38,888.63/224.99
  6. Step 6: Final answer
    x = 172.84

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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.