Home / 330,180.75-495,272.34-80,862.75

Finding the Fourth Proportional to 330,180.75, 495,272.34 and 80,862.75

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Solution

The fourth proportional to 330,180.75, 495,272.34 and 80,862.75 is: 121,294.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,180.75 : 495,272.34 = 80,862.75 : x
  2. Step 2: Convert to fraction form
    330,180.75/495,272.34 = 80,862.75/x
  3. Step 3: Cross multiply
    330,180.75x = 495,272.34 × 80,862.75
  4. Step 4: Simplify right side
    330,180.75x = 40,049,083,411.34
  5. Step 5: Solve for x
    x = 40,049,083,411.34/330,180.75
  6. Step 6: Final answer
    x = 121,294.42

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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.