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Finding the Third Proportional to 71,578.69 and 157,464

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Solution

The third proportional to 71,578.69 and 157,464 is: 346,400.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,578.69 : 157,464 = 157,464 : x
  2. Step 2: Convert to fraction form
    71,578.69/157,464 = 157,464/x
  3. Step 3: Cross multiply
    71,578.69x = 157,464 × 157,464
  4. Step 4: Simplify right side
    71,578.69x = 24,794,911,296
  5. Step 5: Solve for x
    x = 24,794,911,296/71,578.69
  6. Step 6: Final answer
    x = 346,400.75

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.