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Finding the Fourth Proportional to 330,613.60, 495,920.40 and 275,501.20

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Solution

The fourth proportional to 330,613.60, 495,920.40 and 275,501.20 is: 413,251.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,613.60 : 495,920.40 = 275,501.20 : x
  2. Step 2: Convert to fraction form
    330,613.60/495,920.40 = 275,501.20/x
  3. Step 3: Cross multiply
    330,613.60x = 495,920.40 × 275,501.20
  4. Step 4: Simplify right side
    330,613.60x = 136,626,665,304.48
  5. Step 5: Solve for x
    x = 136,626,665,304.48/330,613.60
  6. Step 6: Final answer
    x = 413,251.80

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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.