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Finding the Fourth Proportional to 454.01, 625.79 and 418.23

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Solution

The fourth proportional to 454.01, 625.79 and 418.23 is: 576.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    454.01 : 625.79 = 418.23 : x
  2. Step 2: Convert to fraction form
    454.01/625.79 = 418.23/x
  3. Step 3: Cross multiply
    454.01x = 625.79 × 418.23
  4. Step 4: Simplify right side
    454.01x = 261,725.20
  5. Step 5: Solve for x
    x = 261,725.20/454.01
  6. Step 6: Final answer
    x = 576.48

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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.