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Finding the Fourth Proportional to 246.58, 340.49 and 153.48

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Solution

The fourth proportional to 246.58, 340.49 and 153.48 is: 211.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.58 : 340.49 = 153.48 : x
  2. Step 2: Convert to fraction form
    246.58/340.49 = 153.48/x
  3. Step 3: Cross multiply
    246.58x = 340.49 × 153.48
  4. Step 4: Simplify right side
    246.58x = 52,258.41
  5. Step 5: Solve for x
    x = 52,258.41/246.58
  6. Step 6: Final answer
    x = 211.94

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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.