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Finding the Fourth Proportional to 239.28, 357.07 and 237.48

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Solution

The fourth proportional to 239.28, 357.07 and 237.48 is: 354.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    239.28 : 357.07 = 237.48 : x
  2. Step 2: Convert to fraction form
    239.28/357.07 = 237.48/x
  3. Step 3: Cross multiply
    239.28x = 357.07 × 237.48
  4. Step 4: Simplify right side
    239.28x = 84,796.98
  5. Step 5: Solve for x
    x = 84,796.98/239.28
  6. Step 6: Final answer
    x = 354.38

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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.