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Finding the Fourth Proportional to 380.35, 571.86 and 332.56

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Solution

The fourth proportional to 380.35, 571.86 and 332.56 is: 500.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    380.35 : 571.86 = 332.56 : x
  2. Step 2: Convert to fraction form
    380.35/571.86 = 332.56/x
  3. Step 3: Cross multiply
    380.35x = 571.86 × 332.56
  4. Step 4: Simplify right side
    380.35x = 190,177.76
  5. Step 5: Solve for x
    x = 190,177.76/380.35
  6. Step 6: Final answer
    x = 500.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.