Home / 268,760.16-403,177.30-91,219.50

Finding the Fourth Proportional to 268,760.16, 403,177.30 and 91,219.50

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Solution

The fourth proportional to 268,760.16, 403,177.30 and 91,219.50 is: 136,841.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,760.16 : 403,177.30 = 91,219.50 : x
  2. Step 2: Convert to fraction form
    268,760.16/403,177.30 = 91,219.50/x
  3. Step 3: Cross multiply
    268,760.16x = 403,177.30 × 91,219.50
  4. Step 4: Simplify right side
    268,760.16x = 36,777,631,489.30
  5. Step 5: Solve for x
    x = 36,777,631,489.30/268,760.16
  6. Step 6: Final answer
    x = 136,841.83

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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.