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Finding the Fourth Proportional to 553.79, 764.24 and 332.71

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Solution

The fourth proportional to 553.79, 764.24 and 332.71 is: 459.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    553.79 : 764.24 = 332.71 : x
  2. Step 2: Convert to fraction form
    553.79/764.24 = 332.71/x
  3. Step 3: Cross multiply
    553.79x = 764.24 × 332.71
  4. Step 4: Simplify right side
    553.79x = 254,270.29
  5. Step 5: Solve for x
    x = 254,270.29/553.79
  6. Step 6: Final answer
    x = 459.15

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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.