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Finding the Fourth Proportional to 370.97, 512.04 and 213.68

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Solution

The fourth proportional to 370.97, 512.04 and 213.68 is: 294.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.97 : 512.04 = 213.68 : x
  2. Step 2: Convert to fraction form
    370.97/512.04 = 213.68/x
  3. Step 3: Cross multiply
    370.97x = 512.04 × 213.68
  4. Step 4: Simplify right side
    370.97x = 109,410.15
  5. Step 5: Solve for x
    x = 109,410.15/370.97
  6. Step 6: Final answer
    x = 294.93

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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.