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Finding the Fourth Proportional to 330,902.04, 495,694.92 and 259,489.68

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Solution

The fourth proportional to 330,902.04, 495,694.92 and 259,489.68 is: 388,718.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,902.04 : 495,694.92 = 259,489.68 : x
  2. Step 2: Convert to fraction form
    330,902.04/495,694.92 = 259,489.68/x
  3. Step 3: Cross multiply
    330,902.04x = 495,694.92 × 259,489.68
  4. Step 4: Simplify right side
    330,902.04x = 128,627,715,282.66
  5. Step 5: Solve for x
    x = 128,627,715,282.66/330,902.04
  6. Step 6: Final answer
    x = 388,718.41

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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.