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Finding the Fourth Proportional to 357.66, 494.33 and 270.18

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Solution

The fourth proportional to 357.66, 494.33 and 270.18 is: 373.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    357.66 : 494.33 = 270.18 : x
  2. Step 2: Convert to fraction form
    357.66/494.33 = 270.18/x
  3. Step 3: Cross multiply
    357.66x = 494.33 × 270.18
  4. Step 4: Simplify right side
    357.66x = 133,556.73
  5. Step 5: Solve for x
    x = 133,556.73/357.66
  6. Step 6: Final answer
    x = 373.42

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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.