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Finding the Fourth Proportional to 330,553.60, 495,830.40 and 108,908.80

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Solution

The fourth proportional to 330,553.60, 495,830.40 and 108,908.80 is: 163,363.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,553.60 : 495,830.40 = 108,908.80 : x
  2. Step 2: Convert to fraction form
    330,553.60/495,830.40 = 108,908.80/x
  3. Step 3: Cross multiply
    330,553.60x = 495,830.40 × 108,908.80
  4. Step 4: Simplify right side
    330,553.60x = 54,000,293,867.52
  5. Step 5: Solve for x
    x = 54,000,293,867.52/330,553.60
  6. Step 6: Final answer
    x = 163,363.20

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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.