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Finding the Fourth Proportional to 301.29, 416.03 and 239.46

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Solution

The fourth proportional to 301.29, 416.03 and 239.46 is: 330.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    301.29 : 416.03 = 239.46 : x
  2. Step 2: Convert to fraction form
    301.29/416.03 = 239.46/x
  3. Step 3: Cross multiply
    301.29x = 416.03 × 239.46
  4. Step 4: Simplify right side
    301.29x = 99,621.35
  5. Step 5: Solve for x
    x = 99,621.35/301.29
  6. Step 6: Final answer
    x = 330.65

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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.