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Finding the Fourth Proportional to 553.81, 764.15 and 332.68

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Solution

The fourth proportional to 553.81, 764.15 and 332.68 is: 459.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    553.81 : 764.15 = 332.68 : x
  2. Step 2: Convert to fraction form
    553.81/764.15 = 332.68/x
  3. Step 3: Cross multiply
    553.81x = 764.15 × 332.68
  4. Step 4: Simplify right side
    553.81x = 254,218.25
  5. Step 5: Solve for x
    x = 254,218.25/553.81
  6. Step 6: Final answer
    x = 459.04

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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.