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Finding the Fourth Proportional to 330,532.08, 495,793.80 and 81,216.24

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Solution

The fourth proportional to 330,532.08, 495,793.80 and 81,216.24 is: 121,823.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,532.08 : 495,793.80 = 81,216.24 : x
  2. Step 2: Convert to fraction form
    330,532.08/495,793.80 = 81,216.24/x
  3. Step 3: Cross multiply
    330,532.08x = 495,793.80 × 81,216.24
  4. Step 4: Simplify right side
    330,532.08x = 40,266,508,251.31
  5. Step 5: Solve for x
    x = 40,266,508,251.31/330,532.08
  6. Step 6: Final answer
    x = 121,823.30

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1.5x scale

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.