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Finding the Third Proportional to 179,129.25 and 391,475.25

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Solution

The third proportional to 179,129.25 and 391,475.25 is: 855,543.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,129.25 : 391,475.25 = 391,475.25 : x
  2. Step 2: Convert to fraction form
    179,129.25/391,475.25 = 391,475.25/x
  3. Step 3: Cross multiply
    179,129.25x = 391,475.25 × 391,475.25
  4. Step 4: Simplify right side
    179,129.25x = 153,252,871,362.56
  5. Step 5: Solve for x
    x = 153,252,871,362.56/179,129.25
  6. Step 6: Final answer
    x = 855,543.53

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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.