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Finding the Fourth Proportional to 330,243.66, 495,209.32 and 127,934.52

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Solution

The fourth proportional to 330,243.66, 495,209.32 and 127,934.52 is: 191,841.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,243.66 : 495,209.32 = 127,934.52 : x
  2. Step 2: Convert to fraction form
    330,243.66/495,209.32 = 127,934.52/x
  3. Step 3: Cross multiply
    330,243.66x = 495,209.32 × 127,934.52
  4. Step 4: Simplify right side
    330,243.66x = 63,354,366,653.73
  5. Step 5: Solve for x
    x = 63,354,366,653.73/330,243.66
  6. Step 6: Final answer
    x = 191,841.28

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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.