Home / 260,245.12-390,091.20-102,451.84

Finding the Fourth Proportional to 260,245.12, 390,091.20 and 102,451.84

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Solution

The fourth proportional to 260,245.12, 390,091.20 and 102,451.84 is: 153,568.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,245.12 : 390,091.20 = 102,451.84 : x
  2. Step 2: Convert to fraction form
    260,245.12/390,091.20 = 102,451.84/x
  3. Step 3: Cross multiply
    260,245.12x = 390,091.20 × 102,451.84
  4. Step 4: Simplify right side
    260,245.12x = 39,965,561,207.81
  5. Step 5: Solve for x
    x = 39,965,561,207.81/260,245.12
  6. Step 6: Final answer
    x = 153,568.92

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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.