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Finding the Fourth Proportional to 253,236.38, 379,867.32 and 75,744.92

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Solution

The fourth proportional to 253,236.38, 379,867.32 and 75,744.92 is: 113,621.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,236.38 : 379,867.32 = 75,744.92 : x
  2. Step 2: Convert to fraction form
    253,236.38/379,867.32 = 75,744.92/x
  3. Step 3: Cross multiply
    253,236.38x = 379,867.32 × 75,744.92
  4. Step 4: Simplify right side
    253,236.38x = 28,773,020,713.68
  5. Step 5: Solve for x
    x = 28,773,020,713.68/253,236.38
  6. Step 6: Final answer
    x = 113,621.20

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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.