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Finding the Fourth Proportional to 260,591.88, 391,007.70 and 180,751.80

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Solution

The fourth proportional to 260,591.88, 391,007.70 and 180,751.80 is: 271,210.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,591.88 : 391,007.70 = 180,751.80 : x
  2. Step 2: Convert to fraction form
    260,591.88/391,007.70 = 180,751.80/x
  3. Step 3: Cross multiply
    260,591.88x = 391,007.70 × 180,751.80
  4. Step 4: Simplify right side
    260,591.88x = 70,675,345,588.86
  5. Step 5: Solve for x
    x = 70,675,345,588.86/260,591.88
  6. Step 6: Final answer
    x = 271,210.85

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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.