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Finding the Fourth Proportional to 330,870.27, 496,305.48 and 81,552.27

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Solution

The fourth proportional to 330,870.27, 496,305.48 and 81,552.27 is: 122,328.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,870.27 : 496,305.48 = 81,552.27 : x
  2. Step 2: Convert to fraction form
    330,870.27/496,305.48 = 81,552.27/x
  3. Step 3: Cross multiply
    330,870.27x = 496,305.48 × 81,552.27
  4. Step 4: Simplify right side
    330,870.27x = 40,474,838,507.44
  5. Step 5: Solve for x
    x = 40,474,838,507.44/330,870.27
  6. Step 6: Final answer
    x = 122,328.42

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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.