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Finding the Fourth Proportional to 330,175.67, 495,239.28 and 105,475.76

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Solution

The fourth proportional to 330,175.67, 495,239.28 and 105,475.76 is: 158,205.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,175.67 : 495,239.28 = 105,475.76 : x
  2. Step 2: Convert to fraction form
    330,175.67/495,239.28 = 105,475.76/x
  3. Step 3: Cross multiply
    330,175.67x = 495,239.28 × 105,475.76
  4. Step 4: Simplify right side
    330,175.67x = 52,235,740,677.95
  5. Step 5: Solve for x
    x = 52,235,740,677.95/330,175.67
  6. Step 6: Final answer
    x = 158,205.91

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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.