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Finding the Fourth Proportional to 440.33, 606.83 and 346.97

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Solution

The fourth proportional to 440.33, 606.83 and 346.97 is: 478.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.33 : 606.83 = 346.97 : x
  2. Step 2: Convert to fraction form
    440.33/606.83 = 346.97/x
  3. Step 3: Cross multiply
    440.33x = 606.83 × 346.97
  4. Step 4: Simplify right side
    440.33x = 210,551.59
  5. Step 5: Solve for x
    x = 210,551.59/440.33
  6. Step 6: Final answer
    x = 478.17

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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.