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Finding the Third Proportional to 252,753.75 and 390,330.56

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Solution

The third proportional to 252,753.75 and 390,330.56 is: 602,792.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,753.75 : 390,330.56 = 390,330.56 : x
  2. Step 2: Convert to fraction form
    252,753.75/390,330.56 = 390,330.56/x
  3. Step 3: Cross multiply
    252,753.75x = 390,330.56 × 390,330.56
  4. Step 4: Simplify right side
    252,753.75x = 152,357,948,021.57
  5. Step 5: Solve for x
    x = 152,357,948,021.57/252,753.75
  6. Step 6: Final answer
    x = 602,792.04

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.