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Finding the Fourth Proportional to 268.15, 370.11 and 170.05

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Solution

The fourth proportional to 268.15, 370.11 and 170.05 is: 234.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    268.15 : 370.11 = 170.05 : x
  2. Step 2: Convert to fraction form
    268.15/370.11 = 170.05/x
  3. Step 3: Cross multiply
    268.15x = 370.11 × 170.05
  4. Step 4: Simplify right side
    268.15x = 62,937.21
  5. Step 5: Solve for x
    x = 62,937.21/268.15
  6. Step 6: Final answer
    x = 234.71

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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.