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Finding the Fourth Proportional to 268.70, 370.71 and 181.22

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Solution

The fourth proportional to 268.70, 370.71 and 181.22 is: 250.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    268.70 : 370.71 = 181.22 : x
  2. Step 2: Convert to fraction form
    268.70/370.71 = 181.22/x
  3. Step 3: Cross multiply
    268.70x = 370.71 × 181.22
  4. Step 4: Simplify right side
    268.70x = 67,178.21
  5. Step 5: Solve for x
    x = 67,178.21/268.70
  6. Step 6: Final answer
    x = 250.02

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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.