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Finding the Third Proportional to 78,365.25 and 171,752.63

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Solution

The third proportional to 78,365.25 and 171,752.63 is: 376,429.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,365.25 : 171,752.63 = 171,752.63 : x
  2. Step 2: Convert to fraction form
    78,365.25/171,752.63 = 171,752.63/x
  3. Step 3: Cross multiply
    78,365.25x = 171,752.63 × 171,752.63
  4. Step 4: Simplify right side
    78,365.25x = 29,498,964,194.39
  5. Step 5: Solve for x
    x = 29,498,964,194.39/78,365.25
  6. Step 6: Final answer
    x = 376,429.15

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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.