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Finding the Fourth Proportional to 246.86, 340.38 and 213.60

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Solution

The fourth proportional to 246.86, 340.38 and 213.60 is: 294.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.86 : 340.38 = 213.60 : x
  2. Step 2: Convert to fraction form
    246.86/340.38 = 213.60/x
  3. Step 3: Cross multiply
    246.86x = 340.38 × 213.60
  4. Step 4: Simplify right side
    246.86x = 72,705.17
  5. Step 5: Solve for x
    x = 72,705.17/246.86
  6. Step 6: Final answer
    x = 294.52

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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.