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Finding the Fourth Proportional to 444.88, 669.92 and 330.14

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Solution

The fourth proportional to 444.88, 669.92 and 330.14 is: 497.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.88 : 669.92 = 330.14 : x
  2. Step 2: Convert to fraction form
    444.88/669.92 = 330.14/x
  3. Step 3: Cross multiply
    444.88x = 669.92 × 330.14
  4. Step 4: Simplify right side
    444.88x = 221,167.39
  5. Step 5: Solve for x
    x = 221,167.39/444.88
  6. Step 6: Final answer
    x = 497.14

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.