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Finding the Fourth Proportional to 301.29, 416.22 and 238.92

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Solution

The fourth proportional to 301.29, 416.22 and 238.92 is: 330.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    301.29 : 416.22 = 238.92 : x
  2. Step 2: Convert to fraction form
    301.29/416.22 = 238.92/x
  3. Step 3: Cross multiply
    301.29x = 416.22 × 238.92
  4. Step 4: Simplify right side
    301.29x = 99,443.28
  5. Step 5: Solve for x
    x = 99,443.28/301.29
  6. Step 6: Final answer
    x = 330.06

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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.