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Finding the Fourth Proportional to 341.82, 471.93 and 225.45

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Solution

The fourth proportional to 341.82, 471.93 and 225.45 is: 311.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.82 : 471.93 = 225.45 : x
  2. Step 2: Convert to fraction form
    341.82/471.93 = 225.45/x
  3. Step 3: Cross multiply
    341.82x = 471.93 × 225.45
  4. Step 4: Simplify right side
    341.82x = 106,396.62
  5. Step 5: Solve for x
    x = 106,396.62/341.82
  6. Step 6: Final answer
    x = 311.27

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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.