Home / 221,230.12-305,200.42-149,584.20

Finding the Fourth Proportional to 221,230.12, 305,200.42 and 149,584.20

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Solution

The fourth proportional to 221,230.12, 305,200.42 and 149,584.20 is: 206,360.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,230.12 : 305,200.42 = 149,584.20 : x
  2. Step 2: Convert to fraction form
    221,230.12/305,200.42 = 149,584.20/x
  3. Step 3: Cross multiply
    221,230.12x = 305,200.42 × 149,584.20
  4. Step 4: Simplify right side
    221,230.12x = 45,653,160,665.36
  5. Step 5: Solve for x
    x = 45,653,160,665.36/221,230.12
  6. Step 6: Final answer
    x = 206,360.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.