Home / 330,828.30-495,999.45-131,049.90

Finding the Fourth Proportional to 330,828.30, 495,999.45 and 131,049.90

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Solution

The fourth proportional to 330,828.30, 495,999.45 and 131,049.90 is: 196,478.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,828.30 : 495,999.45 = 131,049.90 : x
  2. Step 2: Convert to fraction form
    330,828.30/495,999.45 = 131,049.90/x
  3. Step 3: Cross multiply
    330,828.30x = 495,999.45 × 131,049.90
  4. Step 4: Simplify right side
    330,828.30x = 65,000,678,322.56
  5. Step 5: Solve for x
    x = 65,000,678,322.56/330,828.30
  6. Step 6: Final answer
    x = 196,478.59

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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.