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Finding the Third Proportional to 244.90 and 531.09

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Solution

The third proportional to 244.90 and 531.09 is: 1,151.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.90 : 531.09 = 531.09 : x
  2. Step 2: Convert to fraction form
    244.90/531.09 = 531.09/x
  3. Step 3: Cross multiply
    244.90x = 531.09 × 531.09
  4. Step 4: Simplify right side
    244.90x = 282,054.35
  5. Step 5: Solve for x
    x = 282,054.35/244.90
  6. Step 6: Final answer
    x = 1,151.72

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.