Home / 268,811.11-403,203.30-100,318.56

Finding the Fourth Proportional to 268,811.11, 403,203.30 and 100,318.56

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Solution

The fourth proportional to 268,811.11, 403,203.30 and 100,318.56 is: 150,472.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,811.11 : 403,203.30 = 100,318.56 : x
  2. Step 2: Convert to fraction form
    268,811.11/403,203.30 = 100,318.56/x
  3. Step 3: Cross multiply
    268,811.11x = 403,203.30 × 100,318.56
  4. Step 4: Simplify right side
    268,811.11x = 40,448,774,443.25
  5. Step 5: Solve for x
    x = 40,448,774,443.25/268,811.11
  6. Step 6: Final answer
    x = 150,472.85

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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.