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Finding the Fourth Proportional to 248.02, 342.13 and 230.43

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Solution

The fourth proportional to 248.02, 342.13 and 230.43 is: 317.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.02 : 342.13 = 230.43 : x
  2. Step 2: Convert to fraction form
    248.02/342.13 = 230.43/x
  3. Step 3: Cross multiply
    248.02x = 342.13 × 230.43
  4. Step 4: Simplify right side
    248.02x = 78,837.02
  5. Step 5: Solve for x
    x = 78,837.02/248.02
  6. Step 6: Final answer
    x = 317.87

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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.