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Finding the Fourth Proportional to 254.48, 350.89 and 188.19

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Solution

The fourth proportional to 254.48, 350.89 and 188.19 is: 259.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    254.48 : 350.89 = 188.19 : x
  2. Step 2: Convert to fraction form
    254.48/350.89 = 188.19/x
  3. Step 3: Cross multiply
    254.48x = 350.89 × 188.19
  4. Step 4: Simplify right side
    254.48x = 66,031.29
  5. Step 5: Solve for x
    x = 66,031.29/254.48
  6. Step 6: Final answer
    x = 259.48

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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.