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Finding the Third Proportional to 321,999.75 and 473,153.75

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Solution

The third proportional to 321,999.75 and 473,153.75 is: 695,262.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,999.75 : 473,153.75 = 473,153.75 : x
  2. Step 2: Convert to fraction form
    321,999.75/473,153.75 = 473,153.75/x
  3. Step 3: Cross multiply
    321,999.75x = 473,153.75 × 473,153.75
  4. Step 4: Simplify right side
    321,999.75x = 223,874,471,139.06
  5. Step 5: Solve for x
    x = 223,874,471,139.06/321,999.75
  6. Step 6: Final answer
    x = 695,262.87

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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.