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Finding the Fourth Proportional to 246.06, 339.21 and 187.74

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Solution

The fourth proportional to 246.06, 339.21 and 187.74 is: 258.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.06 : 339.21 = 187.74 : x
  2. Step 2: Convert to fraction form
    246.06/339.21 = 187.74/x
  3. Step 3: Cross multiply
    246.06x = 339.21 × 187.74
  4. Step 4: Simplify right side
    246.06x = 63,683.29
  5. Step 5: Solve for x
    x = 63,683.29/246.06
  6. Step 6: Final answer
    x = 258.81

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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.