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Finding the Fourth Proportional to 312.34, 467.97 and 301.15

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Solution

The fourth proportional to 312.34, 467.97 and 301.15 is: 451.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    312.34 : 467.97 = 301.15 : x
  2. Step 2: Convert to fraction form
    312.34/467.97 = 301.15/x
  3. Step 3: Cross multiply
    312.34x = 467.97 × 301.15
  4. Step 4: Simplify right side
    312.34x = 140,929.17
  5. Step 5: Solve for x
    x = 140,929.17/312.34
  6. Step 6: Final answer
    x = 451.20

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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.