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Finding the Fourth Proportional to 246.92, 340.67 and 148.64

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Solution

The fourth proportional to 246.92, 340.67 and 148.64 is: 205.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.92 : 340.67 = 148.64 : x
  2. Step 2: Convert to fraction form
    246.92/340.67 = 148.64/x
  3. Step 3: Cross multiply
    246.92x = 340.67 × 148.64
  4. Step 4: Simplify right side
    246.92x = 50,635.86
  5. Step 5: Solve for x
    x = 50,635.86/246.92
  6. Step 6: Final answer
    x = 205.07

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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.