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Finding the Fourth Proportional to 264.34, 398.27 and 238.69

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Solution

The fourth proportional to 264.34, 398.27 and 238.69 is: 359.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.34 : 398.27 = 238.69 : x
  2. Step 2: Convert to fraction form
    264.34/398.27 = 238.69/x
  3. Step 3: Cross multiply
    264.34x = 398.27 × 238.69
  4. Step 4: Simplify right side
    264.34x = 95,063.07
  5. Step 5: Solve for x
    x = 95,063.07/264.34
  6. Step 6: Final answer
    x = 359.62

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.