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Finding the Fourth Proportional to 330,034.08, 495,046.80 and 80,718.24

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Solution

The fourth proportional to 330,034.08, 495,046.80 and 80,718.24 is: 121,076.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,034.08 : 495,046.80 = 80,718.24 : x
  2. Step 2: Convert to fraction form
    330,034.08/495,046.80 = 80,718.24/x
  3. Step 3: Cross multiply
    330,034.08x = 495,046.80 × 80,718.24
  4. Step 4: Simplify right side
    330,034.08x = 39,959,306,413.63
  5. Step 5: Solve for x
    x = 39,959,306,413.63/330,034.08
  6. Step 6: Final answer
    x = 121,076.30

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1.5x scale

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.