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Finding the Fourth Proportional to 297.06, 409.67 and 230.69

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Solution

The fourth proportional to 297.06, 409.67 and 230.69 is: 318.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.06 : 409.67 = 230.69 : x
  2. Step 2: Convert to fraction form
    297.06/409.67 = 230.69/x
  3. Step 3: Cross multiply
    297.06x = 409.67 × 230.69
  4. Step 4: Simplify right side
    297.06x = 94,506.77
  5. Step 5: Solve for x
    x = 94,506.77/297.06
  6. Step 6: Final answer
    x = 318.14

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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.