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Finding the Fourth Proportional to 267,257.68, 399,954.59 and 218,664.69

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Solution

The fourth proportional to 267,257.68, 399,954.59 and 218,664.69 is: 327,234.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,257.68 : 399,954.59 = 218,664.69 : x
  2. Step 2: Convert to fraction form
    267,257.68/399,954.59 = 218,664.69/x
  3. Step 3: Cross multiply
    267,257.68x = 399,954.59 × 218,664.69
  4. Step 4: Simplify right side
    267,257.68x = 87,455,945,173.14
  5. Step 5: Solve for x
    x = 87,455,945,173.14/267,257.68
  6. Step 6: Final answer
    x = 327,234.55

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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.