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Finding the Fourth Proportional to 330,179.92, 495,245.66 and 105,480.04

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Solution

The fourth proportional to 330,179.92, 495,245.66 and 105,480.04 is: 158,212.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,179.92 : 495,245.66 = 105,480.04 : x
  2. Step 2: Convert to fraction form
    330,179.92/495,245.66 = 105,480.04/x
  3. Step 3: Cross multiply
    330,179.92x = 495,245.66 × 105,480.04
  4. Step 4: Simplify right side
    330,179.92x = 52,238,532,026.63
  5. Step 5: Solve for x
    x = 52,238,532,026.63/330,179.92
  6. Step 6: Final answer
    x = 158,212.32

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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.