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Finding the Fourth Proportional to 238.66, 358.39 and 130.52

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Solution

The fourth proportional to 238.66, 358.39 and 130.52 is: 196.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    238.66 : 358.39 = 130.52 : x
  2. Step 2: Convert to fraction form
    238.66/358.39 = 130.52/x
  3. Step 3: Cross multiply
    238.66x = 358.39 × 130.52
  4. Step 4: Simplify right side
    238.66x = 46,778.12
  5. Step 5: Solve for x
    x = 46,778.12/238.66
  6. Step 6: Final answer
    x = 196.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.