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Finding the Fourth Proportional to 357.80, 493.26 and 254.12

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Solution

The fourth proportional to 357.80, 493.26 and 254.12 is: 350.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    357.80 : 493.26 = 254.12 : x
  2. Step 2: Convert to fraction form
    357.80/493.26 = 254.12/x
  3. Step 3: Cross multiply
    357.80x = 493.26 × 254.12
  4. Step 4: Simplify right side
    357.80x = 125,347.23
  5. Step 5: Solve for x
    x = 125,347.23/357.80
  6. Step 6: Final answer
    x = 350.33

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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.