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Finding the Third Proportional to 253,480 and 555,344

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Solution

The third proportional to 253,480 and 555,344 is: 1,216,691.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,480 : 555,344 = 555,344 : x
  2. Step 2: Convert to fraction form
    253,480/555,344 = 555,344/x
  3. Step 3: Cross multiply
    253,480x = 555,344 × 555,344
  4. Step 4: Simplify right side
    253,480x = 308,406,958,336
  5. Step 5: Solve for x
    x = 308,406,958,336/253,480
  6. Step 6: Final answer
    x = 1,216,691.49

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.