Home / 268,976.16-403,517.70-91,435.50

Finding the Fourth Proportional to 268,976.16, 403,517.70 and 91,435.50

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Solution

The fourth proportional to 268,976.16, 403,517.70 and 91,435.50 is: 137,171.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,976.16 : 403,517.70 = 91,435.50 : x
  2. Step 2: Convert to fraction form
    268,976.16/403,517.70 = 91,435.50/x
  3. Step 3: Cross multiply
    268,976.16x = 403,517.70 × 91,435.50
  4. Step 4: Simplify right side
    268,976.16x = 36,895,842,658.35
  5. Step 5: Solve for x
    x = 36,895,842,658.35/268,976.16
  6. Step 6: Final answer
    x = 137,171.42

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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.