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Finding the Third Proportional to 321,540 and 473,016

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Solution

The third proportional to 321,540 and 473,016 is: 695,851.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,540 : 473,016 = 473,016 : x
  2. Step 2: Convert to fraction form
    321,540/473,016 = 473,016/x
  3. Step 3: Cross multiply
    321,540x = 473,016 × 473,016
  4. Step 4: Simplify right side
    321,540x = 223,744,136,256
  5. Step 5: Solve for x
    x = 223,744,136,256/321,540
  6. Step 6: Final answer
    x = 695,851.64

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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.