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Finding the Fourth Proportional to 246.49, 339.95 and 148.23

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Solution

The fourth proportional to 246.49, 339.95 and 148.23 is: 204.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.49 : 339.95 = 148.23 : x
  2. Step 2: Convert to fraction form
    246.49/339.95 = 148.23/x
  3. Step 3: Cross multiply
    246.49x = 339.95 × 148.23
  4. Step 4: Simplify right side
    246.49x = 50,388.35
  5. Step 5: Solve for x
    x = 50,388.35/246.49
  6. Step 6: Final answer
    x = 204.43

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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.