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Finding the Fourth Proportional to 417.60, 626.32 and 160.96

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Solution

The fourth proportional to 417.60, 626.32 and 160.96 is: 241.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    417.60 : 626.32 = 160.96 : x
  2. Step 2: Convert to fraction form
    417.60/626.32 = 160.96/x
  3. Step 3: Cross multiply
    417.60x = 626.32 × 160.96
  4. Step 4: Simplify right side
    417.60x = 100,812.47
  5. Step 5: Solve for x
    x = 100,812.47/417.60
  6. Step 6: Final answer
    x = 241.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.