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Finding the Fourth Proportional to 297.10, 410.30 and 230.95

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Solution

The fourth proportional to 297.10, 410.30 and 230.95 is: 318.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.10 : 410.30 = 230.95 : x
  2. Step 2: Convert to fraction form
    297.10/410.30 = 230.95/x
  3. Step 3: Cross multiply
    297.10x = 410.30 × 230.95
  4. Step 4: Simplify right side
    297.10x = 94,758.79
  5. Step 5: Solve for x
    x = 94,758.79/297.10
  6. Step 6: Final answer
    x = 318.95

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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.