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Finding the Fourth Proportional to 260,874.80, 391,260.88 and 83,333.96

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Solution

The fourth proportional to 260,874.80, 391,260.88 and 83,333.96 is: 124,984.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,874.80 : 391,260.88 = 83,333.96 : x
  2. Step 2: Convert to fraction form
    260,874.80/391,260.88 = 83,333.96/x
  3. Step 3: Cross multiply
    260,874.80x = 391,260.88 × 83,333.96
  4. Step 4: Simplify right side
    260,874.80x = 32,605,318,523.48
  5. Step 5: Solve for x
    x = 32,605,318,523.48/260,874.80
  6. Step 6: Final answer
    x = 124,984.55

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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.