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Finding the Third Proportional to 321,570 and 441,348.75

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Solution

The third proportional to 321,570 and 441,348.75 is: 605,742.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,570 : 441,348.75 = 441,348.75 : x
  2. Step 2: Convert to fraction form
    321,570/441,348.75 = 441,348.75/x
  3. Step 3: Cross multiply
    321,570x = 441,348.75 × 441,348.75
  4. Step 4: Simplify right side
    321,570x = 194,788,719,126.56
  5. Step 5: Solve for x
    x = 194,788,719,126.56/321,570
  6. Step 6: Final answer
    x = 605,742.82

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.