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Finding the Fourth Proportional to 554.18, 764.79 and 333.23

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Solution

The fourth proportional to 554.18, 764.79 and 333.23 is: 459.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.18 : 764.79 = 333.23 : x
  2. Step 2: Convert to fraction form
    554.18/764.79 = 333.23/x
  3. Step 3: Cross multiply
    554.18x = 764.79 × 333.23
  4. Step 4: Simplify right side
    554.18x = 254,850.97
  5. Step 5: Solve for x
    x = 254,850.97/554.18
  6. Step 6: Final answer
    x = 459.87

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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.