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Finding the Fourth Proportional to 239.25, 357.56 and 177.69

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Solution

The fourth proportional to 239.25, 357.56 and 177.69 is: 265.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    239.25 : 357.56 = 177.69 : x
  2. Step 2: Convert to fraction form
    239.25/357.56 = 177.69/x
  3. Step 3: Cross multiply
    239.25x = 357.56 × 177.69
  4. Step 4: Simplify right side
    239.25x = 63,535.96
  5. Step 5: Solve for x
    x = 63,535.96/239.25
  6. Step 6: Final answer
    x = 265.56

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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.