Home / 261,739.62-391,834.38-161,577.78

Finding the Fourth Proportional to 261,739.62, 391,834.38 and 161,577.78

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Solution

The fourth proportional to 261,739.62, 391,834.38 and 161,577.78 is: 241,888.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,739.62 : 391,834.38 = 161,577.78 : x
  2. Step 2: Convert to fraction form
    261,739.62/391,834.38 = 161,577.78/x
  3. Step 3: Cross multiply
    261,739.62x = 391,834.38 × 161,577.78
  4. Step 4: Simplify right side
    261,739.62x = 63,311,729,248.08
  5. Step 5: Solve for x
    x = 63,311,729,248.08/261,739.62
  6. Step 6: Final answer
    x = 241,888.21

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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.