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Finding the Fourth Proportional to 553.88, 764.52 and 332.72

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Solution

The fourth proportional to 553.88, 764.52 and 332.72 is: 459.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    553.88 : 764.52 = 332.72 : x
  2. Step 2: Convert to fraction form
    553.88/764.52 = 332.72/x
  3. Step 3: Cross multiply
    553.88x = 764.52 × 332.72
  4. Step 4: Simplify right side
    553.88x = 254,371.09
  5. Step 5: Solve for x
    x = 254,371.09/553.88
  6. Step 6: Final answer
    x = 459.25

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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.