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Finding the Fourth Proportional to 252,694.64, 379,040.10 and 102,899.72

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Solution

The fourth proportional to 252,694.64, 379,040.10 and 102,899.72 is: 154,348.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,694.64 : 379,040.10 = 102,899.72 : x
  2. Step 2: Convert to fraction form
    252,694.64/379,040.10 = 102,899.72/x
  3. Step 3: Cross multiply
    252,694.64x = 379,040.10 × 102,899.72
  4. Step 4: Simplify right side
    252,694.64x = 39,003,120,158.77
  5. Step 5: Solve for x
    x = 39,003,120,158.77/252,694.64
  6. Step 6: Final answer
    x = 154,348.82

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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.