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Finding the Fourth Proportional to 521.72, 782.37 and 232.96

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Solution

The fourth proportional to 521.72, 782.37 and 232.96 is: 349.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    521.72 : 782.37 = 232.96 : x
  2. Step 2: Convert to fraction form
    521.72/782.37 = 232.96/x
  3. Step 3: Cross multiply
    521.72x = 782.37 × 232.96
  4. Step 4: Simplify right side
    521.72x = 182,255.84
  5. Step 5: Solve for x
    x = 182,255.84/521.72
  6. Step 6: Final answer
    x = 349.34

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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.