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Finding the Fourth Proportional to 246.27, 368.60 and 215.51

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Solution

The fourth proportional to 246.27, 368.60 and 215.51 is: 322.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.27 : 368.60 = 215.51 : x
  2. Step 2: Convert to fraction form
    246.27/368.60 = 215.51/x
  3. Step 3: Cross multiply
    246.27x = 368.60 × 215.51
  4. Step 4: Simplify right side
    246.27x = 79,437.35
  5. Step 5: Solve for x
    x = 79,437.35/246.27
  6. Step 6: Final answer
    x = 322.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.