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Finding the Fourth Proportional to 236.88, 328.32 and 232.80

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Solution

The fourth proportional to 236.88, 328.32 and 232.80 is: 322.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.88 : 328.32 = 232.80 : x
  2. Step 2: Convert to fraction form
    236.88/328.32 = 232.80/x
  3. Step 3: Cross multiply
    236.88x = 328.32 × 232.80
  4. Step 4: Simplify right side
    236.88x = 76,432.90
  5. Step 5: Solve for x
    x = 76,432.90/236.88
  6. Step 6: Final answer
    x = 322.67

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.