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Finding the Fourth Proportional to 440.05, 606.12 and 352.57

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Solution

The fourth proportional to 440.05, 606.12 and 352.57 is: 485.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.05 : 606.12 = 352.57 : x
  2. Step 2: Convert to fraction form
    440.05/606.12 = 352.57/x
  3. Step 3: Cross multiply
    440.05x = 606.12 × 352.57
  4. Step 4: Simplify right side
    440.05x = 213,696.70
  5. Step 5: Solve for x
    x = 213,696.70/440.05
  6. Step 6: Final answer
    x = 485.62

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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.