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Finding the Fourth Proportional to 481.19, 663.27 and 418.01

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Solution

The fourth proportional to 481.19, 663.27 and 418.01 is: 576.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.19 : 663.27 = 418.01 : x
  2. Step 2: Convert to fraction form
    481.19/663.27 = 418.01/x
  3. Step 3: Cross multiply
    481.19x = 663.27 × 418.01
  4. Step 4: Simplify right side
    481.19x = 277,250.18
  5. Step 5: Solve for x
    x = 277,250.18/481.19
  6. Step 6: Final answer
    x = 576.18

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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.