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Finding the Fourth Proportional to 427.12, 588.72 and 333.52

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Solution

The fourth proportional to 427.12, 588.72 and 333.52 is: 459.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    427.12 : 588.72 = 333.52 : x
  2. Step 2: Convert to fraction form
    427.12/588.72 = 333.52/x
  3. Step 3: Cross multiply
    427.12x = 588.72 × 333.52
  4. Step 4: Simplify right side
    427.12x = 196,349.89
  5. Step 5: Solve for x
    x = 196,349.89/427.12
  6. Step 6: Final answer
    x = 459.71

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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.