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Finding the Fourth Proportional to 418.37, 625.02 and 270.92

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Solution

The fourth proportional to 418.37, 625.02 and 270.92 is: 404.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    418.37 : 625.02 = 270.92 : x
  2. Step 2: Convert to fraction form
    418.37/625.02 = 270.92/x
  3. Step 3: Cross multiply
    418.37x = 625.02 × 270.92
  4. Step 4: Simplify right side
    418.37x = 169,327.29
  5. Step 5: Solve for x
    x = 169,327.29/418.37
  6. Step 6: Final answer
    x = 404.74

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.