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Finding the Fourth Proportional to 418.73, 577.55 and 294.53

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Solution

The fourth proportional to 418.73, 577.55 and 294.53 is: 406.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    418.73 : 577.55 = 294.53 : x
  2. Step 2: Convert to fraction form
    418.73/577.55 = 294.53/x
  3. Step 3: Cross multiply
    418.73x = 577.55 × 294.53
  4. Step 4: Simplify right side
    418.73x = 170,104.33
  5. Step 5: Solve for x
    x = 170,104.33/418.73
  6. Step 6: Final answer
    x = 406.24

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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.