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Finding the Third Proportional to 78,865.88 and 170,448.75

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Solution

The third proportional to 78,865.88 and 170,448.75 is: 368,382.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,865.88 : 170,448.75 = 170,448.75 : x
  2. Step 2: Convert to fraction form
    78,865.88/170,448.75 = 170,448.75/x
  3. Step 3: Cross multiply
    78,865.88x = 170,448.75 × 170,448.75
  4. Step 4: Simplify right side
    78,865.88x = 29,052,776,376.56
  5. Step 5: Solve for x
    x = 29,052,776,376.56/78,865.88
  6. Step 6: Final answer
    x = 368,382.10

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.