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Finding the Fourth Proportional to 246.20, 339.87 and 158.93

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Solution

The fourth proportional to 246.20, 339.87 and 158.93 is: 219.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.20 : 339.87 = 158.93 : x
  2. Step 2: Convert to fraction form
    246.20/339.87 = 158.93/x
  3. Step 3: Cross multiply
    246.20x = 339.87 × 158.93
  4. Step 4: Simplify right side
    246.20x = 54,013.84
  5. Step 5: Solve for x
    x = 54,013.84/246.20
  6. Step 6: Final answer
    x = 219.39

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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.