Home / 260,028.20-390,042.30-207,540.20

Finding the Fourth Proportional to 260,028.20, 390,042.30 and 207,540.20

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Solution

The fourth proportional to 260,028.20, 390,042.30 and 207,540.20 is: 311,310.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,028.20 : 390,042.30 = 207,540.20 : x
  2. Step 2: Convert to fraction form
    260,028.20/390,042.30 = 207,540.20/x
  3. Step 3: Cross multiply
    260,028.20x = 390,042.30 × 207,540.20
  4. Step 4: Simplify right side
    260,028.20x = 80,949,456,950.46
  5. Step 5: Solve for x
    x = 80,949,456,950.46/260,028.20
  6. Step 6: Final answer
    x = 311,310.30

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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.