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Finding the Fourth Proportional to 252,996.81, 379,366.27 and 84,456.56

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Solution

The fourth proportional to 252,996.81, 379,366.27 and 84,456.56 is: 126,641.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,996.81 : 379,366.27 = 84,456.56 : x
  2. Step 2: Convert to fraction form
    252,996.81/379,366.27 = 84,456.56/x
  3. Step 3: Cross multiply
    252,996.81x = 379,366.27 × 84,456.56
  4. Step 4: Simplify right side
    252,996.81x = 32,039,970,144.23
  5. Step 5: Solve for x
    x = 32,039,970,144.23/252,996.81
  6. Step 6: Final answer
    x = 126,641.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.