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Finding the Fourth Proportional to 322.86, 481.89 and 300.27

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Solution

The fourth proportional to 322.86, 481.89 and 300.27 is: 448.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    322.86 : 481.89 = 300.27 : x
  2. Step 2: Convert to fraction form
    322.86/481.89 = 300.27/x
  3. Step 3: Cross multiply
    322.86x = 481.89 × 300.27
  4. Step 4: Simplify right side
    322.86x = 144,697.11
  5. Step 5: Solve for x
    x = 144,697.11/322.86
  6. Step 6: Final answer
    x = 448.17

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.