Home / 283,581.12-391,338.68-161,072.66

Finding the Fourth Proportional to 283,581.12, 391,338.68 and 161,072.66

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Solution

The fourth proportional to 283,581.12, 391,338.68 and 161,072.66 is: 222,278.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,581.12 : 391,338.68 = 161,072.66 : x
  2. Step 2: Convert to fraction form
    283,581.12/391,338.68 = 161,072.66/x
  3. Step 3: Cross multiply
    283,581.12x = 391,338.68 × 161,072.66
  4. Step 4: Simplify right side
    283,581.12x = 63,033,962,148.49
  5. Step 5: Solve for x
    x = 63,033,962,148.49/283,581.12
  6. Step 6: Final answer
    x = 222,278.42

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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.