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Finding the Fourth Proportional to 440.69, 608.06 and 330.44

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Solution

The fourth proportional to 440.69, 608.06 and 330.44 is: 455.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.69 : 608.06 = 330.44 : x
  2. Step 2: Convert to fraction form
    440.69/608.06 = 330.44/x
  3. Step 3: Cross multiply
    440.69x = 608.06 × 330.44
  4. Step 4: Simplify right side
    440.69x = 200,925.13
  5. Step 5: Solve for x
    x = 200,925.13/440.69
  6. Step 6: Final answer
    x = 455.94

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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.