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Finding the Fourth Proportional to 341.45, 471.17 and 230.89

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Solution

The fourth proportional to 341.45, 471.17 and 230.89 is: 318.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.45 : 471.17 = 230.89 : x
  2. Step 2: Convert to fraction form
    341.45/471.17 = 230.89/x
  3. Step 3: Cross multiply
    341.45x = 471.17 × 230.89
  4. Step 4: Simplify right side
    341.45x = 108,786.09
  5. Step 5: Solve for x
    x = 108,786.09/341.45
  6. Step 6: Final answer
    x = 318.60

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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.