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Finding the Fourth Proportional to 589.26, 883.70 and 213.96

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Solution

The fourth proportional to 589.26, 883.70 and 213.96 is: 320.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    589.26 : 883.70 = 213.96 : x
  2. Step 2: Convert to fraction form
    589.26/883.70 = 213.96/x
  3. Step 3: Cross multiply
    589.26x = 883.70 × 213.96
  4. Step 4: Simplify right side
    589.26x = 189,079.50
  5. Step 5: Solve for x
    x = 189,079.50/589.26
  6. Step 6: Final answer
    x = 320.88

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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.