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Finding the Fourth Proportional to 253,052.86, 379,450.17 and 84,512.46

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Solution

The fourth proportional to 253,052.86, 379,450.17 and 84,512.46 is: 126,725.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,052.86 : 379,450.17 = 84,512.46 : x
  2. Step 2: Convert to fraction form
    253,052.86/379,450.17 = 84,512.46/x
  3. Step 3: Cross multiply
    253,052.86x = 379,450.17 × 84,512.46
  4. Step 4: Simplify right side
    253,052.86x = 32,068,267,314.12
  5. Step 5: Solve for x
    x = 32,068,267,314.12/253,052.86
  6. Step 6: Final answer
    x = 126,725.57

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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.