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Finding the Fourth Proportional to 484.73, 669.17 and 330.29

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Solution

The fourth proportional to 484.73, 669.17 and 330.29 is: 455.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.73 : 669.17 = 330.29 : x
  2. Step 2: Convert to fraction form
    484.73/669.17 = 330.29/x
  3. Step 3: Cross multiply
    484.73x = 669.17 × 330.29
  4. Step 4: Simplify right side
    484.73x = 221,018.51
  5. Step 5: Solve for x
    x = 221,018.51/484.73
  6. Step 6: Final answer
    x = 455.96

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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.