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Finding the Fourth Proportional to 246.28, 339.42 and 188.20

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Solution

The fourth proportional to 246.28, 339.42 and 188.20 is: 259.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.28 : 339.42 = 188.20 : x
  2. Step 2: Convert to fraction form
    246.28/339.42 = 188.20/x
  3. Step 3: Cross multiply
    246.28x = 339.42 × 188.20
  4. Step 4: Simplify right side
    246.28x = 63,878.84
  5. Step 5: Solve for x
    x = 63,878.84/246.28
  6. Step 6: Final answer
    x = 259.37

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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.