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Finding the Fourth Proportional to 246.36, 339.48 and 216.66

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Solution

The fourth proportional to 246.36, 339.48 and 216.66 is: 298.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.36 : 339.48 = 216.66 : x
  2. Step 2: Convert to fraction form
    246.36/339.48 = 216.66/x
  3. Step 3: Cross multiply
    246.36x = 339.48 × 216.66
  4. Step 4: Simplify right side
    246.36x = 73,551.74
  5. Step 5: Solve for x
    x = 73,551.74/246.36
  6. Step 6: Final answer
    x = 298.55

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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.