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Finding the Third Proportional to 250,647.75 and 391,348.13

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Solution

The third proportional to 250,647.75 and 391,348.13 is: 611,030.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,647.75 : 391,348.13 = 391,348.13 : x
  2. Step 2: Convert to fraction form
    250,647.75/391,348.13 = 391,348.13/x
  3. Step 3: Cross multiply
    250,647.75x = 391,348.13 × 391,348.13
  4. Step 4: Simplify right side
    250,647.75x = 153,153,354,941.02
  5. Step 5: Solve for x
    x = 153,153,354,941.02/250,647.75
  6. Step 6: Final answer
    x = 611,030.24

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.