Home / 330,439.58-456,029.17-187,200.80

Finding the Fourth Proportional to 330,439.58, 456,029.17 and 187,200.80

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Solution

The fourth proportional to 330,439.58, 456,029.17 and 187,200.80 is: 258,349.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,439.58 : 456,029.17 = 187,200.80 : x
  2. Step 2: Convert to fraction form
    330,439.58/456,029.17 = 187,200.80/x
  3. Step 3: Cross multiply
    330,439.58x = 456,029.17 × 187,200.80
  4. Step 4: Simplify right side
    330,439.58x = 85,369,025,447.34
  5. Step 5: Solve for x
    x = 85,369,025,447.34/330,439.58
  6. Step 6: Final answer
    x = 258,349.88

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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.