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Finding the Fourth Proportional to 225.06, 337.15 and 147.79

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Solution

The fourth proportional to 225.06, 337.15 and 147.79 is: 221.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    225.06 : 337.15 = 147.79 : x
  2. Step 2: Convert to fraction form
    225.06/337.15 = 147.79/x
  3. Step 3: Cross multiply
    225.06x = 337.15 × 147.79
  4. Step 4: Simplify right side
    225.06x = 49,827.40
  5. Step 5: Solve for x
    x = 49,827.40/225.06
  6. Step 6: Final answer
    x = 221.40

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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.