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Finding the Third Proportional to 240,702 and 521,580

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Solution

The third proportional to 240,702 and 521,580 is: 1,130,217.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,702 : 521,580 = 521,580 : x
  2. Step 2: Convert to fraction form
    240,702/521,580 = 521,580/x
  3. Step 3: Cross multiply
    240,702x = 521,580 × 521,580
  4. Step 4: Simplify right side
    240,702x = 272,045,696,400
  5. Step 5: Solve for x
    x = 272,045,696,400/240,702
  6. Step 6: Final answer
    x = 1,130,217.85

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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.