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Finding the Fourth Proportional to 246.72, 368.31 and 214.32

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Solution

The fourth proportional to 246.72, 368.31 and 214.32 is: 319.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.72 : 368.31 = 214.32 : x
  2. Step 2: Convert to fraction form
    246.72/368.31 = 214.32/x
  3. Step 3: Cross multiply
    246.72x = 368.31 × 214.32
  4. Step 4: Simplify right side
    246.72x = 78,936.20
  5. Step 5: Solve for x
    x = 78,936.20/246.72
  6. Step 6: Final answer
    x = 319.94

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.