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Finding the Fourth Proportional to 255.41, 351.87 and 236.57

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Solution

The fourth proportional to 255.41, 351.87 and 236.57 is: 325.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    255.41 : 351.87 = 236.57 : x
  2. Step 2: Convert to fraction form
    255.41/351.87 = 236.57/x
  3. Step 3: Cross multiply
    255.41x = 351.87 × 236.57
  4. Step 4: Simplify right side
    255.41x = 83,240.13
  5. Step 5: Solve for x
    x = 83,240.13/255.41
  6. Step 6: Final answer
    x = 325.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.