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Finding the Fourth Proportional to 334.64, 462.12 and 275.72

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Solution

The fourth proportional to 334.64, 462.12 and 275.72 is: 380.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.64 : 462.12 = 275.72 : x
  2. Step 2: Convert to fraction form
    334.64/462.12 = 275.72/x
  3. Step 3: Cross multiply
    334.64x = 462.12 × 275.72
  4. Step 4: Simplify right side
    334.64x = 127,415.73
  5. Step 5: Solve for x
    x = 127,415.73/334.64
  6. Step 6: Final answer
    x = 380.75

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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.