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Finding the Fourth Proportional to 330,781.86, 495,877.50 and 153,044.37

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Solution

The fourth proportional to 330,781.86, 495,877.50 and 153,044.37 is: 229,429.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,781.86 : 495,877.50 = 153,044.37 : x
  2. Step 2: Convert to fraction form
    330,781.86/495,877.50 = 153,044.37/x
  3. Step 3: Cross multiply
    330,781.86x = 495,877.50 × 153,044.37
  4. Step 4: Simplify right side
    330,781.86x = 75,891,259,584.68
  5. Step 5: Solve for x
    x = 75,891,259,584.68/330,781.86
  6. Step 6: Final answer
    x = 229,429.93

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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.