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Finding the Fourth Proportional to 330,108.60, 495,105.30 and 119,638.20

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Solution

The fourth proportional to 330,108.60, 495,105.30 and 119,638.20 is: 179,436.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,108.60 : 495,105.30 = 119,638.20 : x
  2. Step 2: Convert to fraction form
    330,108.60/495,105.30 = 119,638.20/x
  3. Step 3: Cross multiply
    330,108.60x = 495,105.30 × 119,638.20
  4. Step 4: Simplify right side
    330,108.60x = 59,233,506,902.46
  5. Step 5: Solve for x
    x = 59,233,506,902.46/330,108.60
  6. Step 6: Final answer
    x = 179,436.42

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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.