Home / 221,566.80-331,961.40-181,909.20

Finding the Fourth Proportional to 221,566.80, 331,961.40 and 181,909.20

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Solution

The fourth proportional to 221,566.80, 331,961.40 and 181,909.20 is: 272,544.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,566.80 : 331,961.40 = 181,909.20 : x
  2. Step 2: Convert to fraction form
    221,566.80/331,961.40 = 181,909.20/x
  3. Step 3: Cross multiply
    221,566.80x = 331,961.40 × 181,909.20
  4. Step 4: Simplify right side
    221,566.80x = 60,386,832,704.88
  5. Step 5: Solve for x
    x = 60,386,832,704.88/221,566.80
  6. Step 6: Final answer
    x = 272,544.59

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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.