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Finding the Fourth Proportional to 523.29, 784.92 and 211.08

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Solution

The fourth proportional to 523.29, 784.92 and 211.08 is: 316.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    523.29 : 784.92 = 211.08 : x
  2. Step 2: Convert to fraction form
    523.29/784.92 = 211.08/x
  3. Step 3: Cross multiply
    523.29x = 784.92 × 211.08
  4. Step 4: Simplify right side
    523.29x = 165,678.37
  5. Step 5: Solve for x
    x = 165,678.37/523.29
  6. Step 6: Final answer
    x = 316.61

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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.