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Finding the Fourth Proportional to 348.65, 480.88 and 236.67

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Solution

The fourth proportional to 348.65, 480.88 and 236.67 is: 326.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.65 : 480.88 = 236.67 : x
  2. Step 2: Convert to fraction form
    348.65/480.88 = 236.67/x
  3. Step 3: Cross multiply
    348.65x = 480.88 × 236.67
  4. Step 4: Simplify right side
    348.65x = 113,809.87
  5. Step 5: Solve for x
    x = 113,809.87/348.65
  6. Step 6: Final answer
    x = 326.43

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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.