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Finding the Fourth Proportional to 341.73, 471.40 and 217.35

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Solution

The fourth proportional to 341.73, 471.40 and 217.35 is: 299.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.73 : 471.40 = 217.35 : x
  2. Step 2: Convert to fraction form
    341.73/471.40 = 217.35/x
  3. Step 3: Cross multiply
    341.73x = 471.40 × 217.35
  4. Step 4: Simplify right side
    341.73x = 102,458.79
  5. Step 5: Solve for x
    x = 102,458.79/341.73
  6. Step 6: Final answer
    x = 299.82

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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.