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Finding the Fourth Proportional to 386.24, 533.10 and 236.83

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Solution

The fourth proportional to 386.24, 533.10 and 236.83 is: 326.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    386.24 : 533.10 = 236.83 : x
  2. Step 2: Convert to fraction form
    386.24/533.10 = 236.83/x
  3. Step 3: Cross multiply
    386.24x = 533.10 × 236.83
  4. Step 4: Simplify right side
    386.24x = 126,251.41
  5. Step 5: Solve for x
    x = 126,251.41/386.24
  6. Step 6: Final answer
    x = 326.87

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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.