Home / 262,860.20-394,290.30-221,388.20

Finding the Fourth Proportional to 262,860.20, 394,290.30 and 221,388.20

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Solution

The fourth proportional to 262,860.20, 394,290.30 and 221,388.20 is: 332,082.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,860.20 : 394,290.30 = 221,388.20 : x
  2. Step 2: Convert to fraction form
    262,860.20/394,290.30 = 221,388.20/x
  3. Step 3: Cross multiply
    262,860.20x = 394,290.30 × 221,388.20
  4. Step 4: Simplify right side
    262,860.20x = 87,291,219,794.46
  5. Step 5: Solve for x
    x = 87,291,219,794.46/262,860.20
  6. Step 6: Final answer
    x = 332,082.30

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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.