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Finding the Fourth Proportional to 554.56, 764.82 and 333.46

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Solution

The fourth proportional to 554.56, 764.82 and 333.46 is: 459.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.56 : 764.82 = 333.46 : x
  2. Step 2: Convert to fraction form
    554.56/764.82 = 333.46/x
  3. Step 3: Cross multiply
    554.56x = 764.82 × 333.46
  4. Step 4: Simplify right side
    554.56x = 255,036.88
  5. Step 5: Solve for x
    x = 255,036.88/554.56
  6. Step 6: Final answer
    x = 459.89

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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.