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Finding the Fourth Proportional to 330,867.28, 496,300.97 and 81,549.28

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Solution

The fourth proportional to 330,867.28, 496,300.97 and 81,549.28 is: 122,323.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,867.28 : 496,300.97 = 81,549.28 : x
  2. Step 2: Convert to fraction form
    330,867.28/496,300.97 = 81,549.28/x
  3. Step 3: Cross multiply
    330,867.28x = 496,300.97 × 81,549.28
  4. Step 4: Simplify right side
    330,867.28x = 40,472,987,591.05
  5. Step 5: Solve for x
    x = 40,472,987,591.05/330,867.28
  6. Step 6: Final answer
    x = 122,323.93

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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.