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Finding the Third Proportional to 240.31 and 522.81

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Solution

The third proportional to 240.31 and 522.81 is: 1,137.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.31 : 522.81 = 522.81 : x
  2. Step 2: Convert to fraction form
    240.31/522.81 = 522.81/x
  3. Step 3: Cross multiply
    240.31x = 522.81 × 522.81
  4. Step 4: Simplify right side
    240.31x = 273,332.91
  5. Step 5: Solve for x
    x = 273,332.91/240.31
  6. Step 6: Final answer
    x = 1,137.41

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.