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Finding the Third Proportional to 321,660 and 473,134

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Solution

The third proportional to 321,660 and 473,134 is: 695,939.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,660 : 473,134 = 473,134 : x
  2. Step 2: Convert to fraction form
    321,660/473,134 = 473,134/x
  3. Step 3: Cross multiply
    321,660x = 473,134 × 473,134
  4. Step 4: Simplify right side
    321,660x = 223,855,781,956
  5. Step 5: Solve for x
    x = 223,855,781,956/321,660
  6. Step 6: Final answer
    x = 695,939.13

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.