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Finding the Fourth Proportional to 330,127.09, 495,223.44 and 119,781.43

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Solution

The fourth proportional to 330,127.09, 495,223.44 and 119,781.43 is: 179,684.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,127.09 : 495,223.44 = 119,781.43 : x
  2. Step 2: Convert to fraction form
    330,127.09/495,223.44 = 119,781.43/x
  3. Step 3: Cross multiply
    330,127.09x = 495,223.44 × 119,781.43
  4. Step 4: Simplify right side
    330,127.09x = 59,318,571,812.72
  5. Step 5: Solve for x
    x = 59,318,571,812.72/330,127.09
  6. Step 6: Final answer
    x = 179,684.05

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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.