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Finding the Fourth Proportional to 264.12, 394.13 and 236.88

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Solution

The fourth proportional to 264.12, 394.13 and 236.88 is: 353.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.12 : 394.13 = 236.88 : x
  2. Step 2: Convert to fraction form
    264.12/394.13 = 236.88/x
  3. Step 3: Cross multiply
    264.12x = 394.13 × 236.88
  4. Step 4: Simplify right side
    264.12x = 93,360.33
  5. Step 5: Solve for x
    x = 93,360.33/264.12
  6. Step 6: Final answer
    x = 353.48

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.