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Finding the Fourth Proportional to 313.88, 433.63 and 267.73

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Solution

The fourth proportional to 313.88, 433.63 and 267.73 is: 369.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    313.88 : 433.63 = 267.73 : x
  2. Step 2: Convert to fraction form
    313.88/433.63 = 267.73/x
  3. Step 3: Cross multiply
    313.88x = 433.63 × 267.73
  4. Step 4: Simplify right side
    313.88x = 116,095.76
  5. Step 5: Solve for x
    x = 116,095.76/313.88
  6. Step 6: Final answer
    x = 369.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.