Home / 330,127.20-495,190.80-215,965.80

Finding the Fourth Proportional to 330,127.20, 495,190.80 and 215,965.80

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Solution

The fourth proportional to 330,127.20, 495,190.80 and 215,965.80 is: 323,948.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,127.20 : 495,190.80 = 215,965.80 : x
  2. Step 2: Convert to fraction form
    330,127.20/495,190.80 = 215,965.80/x
  3. Step 3: Cross multiply
    330,127.20x = 495,190.80 × 215,965.80
  4. Step 4: Simplify right side
    330,127.20x = 106,944,277,274.64
  5. Step 5: Solve for x
    x = 106,944,277,274.64/330,127.20
  6. Step 6: Final answer
    x = 323,948.70

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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.