Home / 260,921.46-391,280.07-92,376.66

Finding the Fourth Proportional to 260,921.46, 391,280.07 and 92,376.66

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Solution

The fourth proportional to 260,921.46, 391,280.07 and 92,376.66 is: 138,528.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,921.46 : 391,280.07 = 92,376.66 : x
  2. Step 2: Convert to fraction form
    260,921.46/391,280.07 = 92,376.66/x
  3. Step 3: Cross multiply
    260,921.46x = 391,280.07 × 92,376.66
  4. Step 4: Simplify right side
    260,921.46x = 36,145,145,991.17
  5. Step 5: Solve for x
    x = 36,145,145,991.17/260,921.46
  6. Step 6: Final answer
    x = 138,528.84

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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.