Home / 268,768.16-403,189.30-91,227.50

Finding the Fourth Proportional to 268,768.16, 403,189.30 and 91,227.50

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Solution

The fourth proportional to 268,768.16, 403,189.30 and 91,227.50 is: 136,853.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,768.16 : 403,189.30 = 91,227.50 : x
  2. Step 2: Convert to fraction form
    268,768.16/403,189.30 = 91,227.50/x
  3. Step 3: Cross multiply
    268,768.16x = 403,189.30 × 91,227.50
  4. Step 4: Simplify right side
    268,768.16x = 36,781,951,865.75
  5. Step 5: Solve for x
    x = 36,781,951,865.75/268,768.16
  6. Step 6: Final answer
    x = 136,853.83

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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.