Home / 260,863.20-391,197.60-92,318.40

Finding the Fourth Proportional to 260,863.20, 391,197.60 and 92,318.40

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Solution

The fourth proportional to 260,863.20, 391,197.60 and 92,318.40 is: 138,443.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,863.20 : 391,197.60 = 92,318.40 : x
  2. Step 2: Convert to fraction form
    260,863.20/391,197.60 = 92,318.40/x
  3. Step 3: Cross multiply
    260,863.20x = 391,197.60 × 92,318.40
  4. Step 4: Simplify right side
    260,863.20x = 36,114,736,515.84
  5. Step 5: Solve for x
    x = 36,114,736,515.84/260,863.20
  6. Step 6: Final answer
    x = 138,443.20

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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.