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Finding the Third Proportional to 242.38 and 325.88

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Solution

The third proportional to 242.38 and 325.88 is: 438.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    242.38 : 325.88 = 325.88 : x
  2. Step 2: Convert to fraction form
    242.38/325.88 = 325.88/x
  3. Step 3: Cross multiply
    242.38x = 325.88 × 325.88
  4. Step 4: Simplify right side
    242.38x = 106,194.52
  5. Step 5: Solve for x
    x = 106,194.52/242.38
  6. Step 6: Final answer
    x = 438.14

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.