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Finding the Fourth Proportional to 371.70, 554.67 and 334.80

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Solution

The fourth proportional to 371.70, 554.67 and 334.80 is: 499.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.70 : 554.67 = 334.80 : x
  2. Step 2: Convert to fraction form
    371.70/554.67 = 334.80/x
  3. Step 3: Cross multiply
    371.70x = 554.67 × 334.80
  4. Step 4: Simplify right side
    371.70x = 185,703.52
  5. Step 5: Solve for x
    x = 185,703.52/371.70
  6. Step 6: Final answer
    x = 499.61

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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.