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Finding the Fourth Proportional to 246.45, 338.53 and 239.16

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Solution

The fourth proportional to 246.45, 338.53 and 239.16 is: 328.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.45 : 338.53 = 239.16 : x
  2. Step 2: Convert to fraction form
    246.45/338.53 = 239.16/x
  3. Step 3: Cross multiply
    246.45x = 338.53 × 239.16
  4. Step 4: Simplify right side
    246.45x = 80,962.24
  5. Step 5: Solve for x
    x = 80,962.24/246.45
  6. Step 6: Final answer
    x = 328.51

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.