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Finding the Fourth Proportional to 310.46, 427.14 and 301.82

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Solution

The fourth proportional to 310.46, 427.14 and 301.82 is: 415.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    310.46 : 427.14 = 301.82 : x
  2. Step 2: Convert to fraction form
    310.46/427.14 = 301.82/x
  3. Step 3: Cross multiply
    310.46x = 427.14 × 301.82
  4. Step 4: Simplify right side
    310.46x = 128,917.26
  5. Step 5: Solve for x
    x = 128,917.26/310.46
  6. Step 6: Final answer
    x = 415.25

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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.