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Finding the Fourth Proportional to 364.03, 502.34 and 231.21

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Solution

The fourth proportional to 364.03, 502.34 and 231.21 is: 319.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.03 : 502.34 = 231.21 : x
  2. Step 2: Convert to fraction form
    364.03/502.34 = 231.21/x
  3. Step 3: Cross multiply
    364.03x = 502.34 × 231.21
  4. Step 4: Simplify right side
    364.03x = 116,144.88
  5. Step 5: Solve for x
    x = 116,144.88/364.03
  6. Step 6: Final answer
    x = 319.06

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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.