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Finding the Fourth Proportional to 322.77, 481.61 and 303.17

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Solution

The fourth proportional to 322.77, 481.61 and 303.17 is: 452.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    322.77 : 481.61 = 303.17 : x
  2. Step 2: Convert to fraction form
    322.77/481.61 = 303.17/x
  3. Step 3: Cross multiply
    322.77x = 481.61 × 303.17
  4. Step 4: Simplify right side
    322.77x = 146,009.70
  5. Step 5: Solve for x
    x = 146,009.70/322.77
  6. Step 6: Final answer
    x = 452.36

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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.