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Finding the Fourth Proportional to 554.44, 764.88 and 344.41

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Solution

The fourth proportional to 554.44, 764.88 and 344.41 is: 475.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.44 : 764.88 = 344.41 : x
  2. Step 2: Convert to fraction form
    554.44/764.88 = 344.41/x
  3. Step 3: Cross multiply
    554.44x = 764.88 × 344.41
  4. Step 4: Simplify right side
    554.44x = 263,432.32
  5. Step 5: Solve for x
    x = 263,432.32/554.44
  6. Step 6: Final answer
    x = 475.13

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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.