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Finding the Fourth Proportional to 368.21, 507.92 and 229.97

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Solution

The fourth proportional to 368.21, 507.92 and 229.97 is: 317.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.21 : 507.92 = 229.97 : x
  2. Step 2: Convert to fraction form
    368.21/507.92 = 229.97/x
  3. Step 3: Cross multiply
    368.21x = 507.92 × 229.97
  4. Step 4: Simplify right side
    368.21x = 116,805.01
  5. Step 5: Solve for x
    x = 116,805.01/368.21
  6. Step 6: Final answer
    x = 317.22

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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.