Home / 330,816.30-495,981.45-131,037.90

Finding the Fourth Proportional to 330,816.30, 495,981.45 and 131,037.90

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Solution

The fourth proportional to 330,816.30, 495,981.45 and 131,037.90 is: 196,460.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,816.30 : 495,981.45 = 131,037.90 : x
  2. Step 2: Convert to fraction form
    330,816.30/495,981.45 = 131,037.90/x
  3. Step 3: Cross multiply
    330,816.30x = 495,981.45 × 131,037.90
  4. Step 4: Simplify right side
    330,816.30x = 64,992,367,646.96
  5. Step 5: Solve for x
    x = 64,992,367,646.96/330,816.30
  6. Step 6: Final answer
    x = 196,460.60

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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.