Home / 221,569.80-331,965.90-181,912.20

Finding the Fourth Proportional to 221,569.80, 331,965.90 and 181,912.20

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Solution

The fourth proportional to 221,569.80, 331,965.90 and 181,912.20 is: 272,549.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,569.80 : 331,965.90 = 181,912.20 : x
  2. Step 2: Convert to fraction form
    221,569.80/331,965.90 = 181,912.20/x
  3. Step 3: Cross multiply
    221,569.80x = 331,965.90 × 181,912.20
  4. Step 4: Simplify right side
    221,569.80x = 60,388,647,193.98
  5. Step 5: Solve for x
    x = 60,388,647,193.98/221,569.80
  6. Step 6: Final answer
    x = 272,549.09

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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.