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Finding the Fourth Proportional to 554.37, 764.93 and 344.60

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Solution

The fourth proportional to 554.37, 764.93 and 344.60 is: 475.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.37 : 764.93 = 344.60 : x
  2. Step 2: Convert to fraction form
    554.37/764.93 = 344.60/x
  3. Step 3: Cross multiply
    554.37x = 764.93 × 344.60
  4. Step 4: Simplify right side
    554.37x = 263,594.88
  5. Step 5: Solve for x
    x = 263,594.88/554.37
  6. Step 6: Final answer
    x = 475.49

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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.