Home / 330,757.20-456,406.92-187,488.72

Finding the Fourth Proportional to 330,757.20, 456,406.92 and 187,488.72

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Solution

The fourth proportional to 330,757.20, 456,406.92 and 187,488.72 is: 258,712.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,757.20 : 456,406.92 = 187,488.72 : x
  2. Step 2: Convert to fraction form
    330,757.20/456,406.92 = 187,488.72/x
  3. Step 3: Cross multiply
    330,757.20x = 456,406.92 × 187,488.72
  4. Step 4: Simplify right side
    330,757.20x = 85,571,149,229.94
  5. Step 5: Solve for x
    x = 85,571,149,229.94/330,757.20
  6. Step 6: Final answer
    x = 258,712.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.