Home / 285,841.11-394,458.04-156,776.95

Finding the Fourth Proportional to 285,841.11, 394,458.04 and 156,776.95

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Solution

The fourth proportional to 285,841.11, 394,458.04 and 156,776.95 is: 216,350.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,841.11 : 394,458.04 = 156,776.95 : x
  2. Step 2: Convert to fraction form
    285,841.11/394,458.04 = 156,776.95/x
  3. Step 3: Cross multiply
    285,841.11x = 394,458.04 × 156,776.95
  4. Step 4: Simplify right side
    285,841.11x = 61,841,928,221.35
  5. Step 5: Solve for x
    x = 61,841,928,221.35/285,841.11
  6. Step 6: Final answer
    x = 216,350.71

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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.