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Finding the Fourth Proportional to 341.75, 471.71 and 225.47

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Solution

The fourth proportional to 341.75, 471.71 and 225.47 is: 311.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.75 : 471.71 = 225.47 : x
  2. Step 2: Convert to fraction form
    341.75/471.71 = 225.47/x
  3. Step 3: Cross multiply
    341.75x = 471.71 × 225.47
  4. Step 4: Simplify right side
    341.75x = 106,356.45
  5. Step 5: Solve for x
    x = 106,356.45/341.75
  6. Step 6: Final answer
    x = 311.21

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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.