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Finding the Fourth Proportional to 341.64, 471.54 and 225.21

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Solution

The fourth proportional to 341.64, 471.54 and 225.21 is: 310.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.64 : 471.54 = 225.21 : x
  2. Step 2: Convert to fraction form
    341.64/471.54 = 225.21/x
  3. Step 3: Cross multiply
    341.64x = 471.54 × 225.21
  4. Step 4: Simplify right side
    341.64x = 106,195.52
  5. Step 5: Solve for x
    x = 106,195.52/341.64
  6. Step 6: Final answer
    x = 310.84

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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.