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Finding the Fourth Proportional to 262.12, 361.76 and 151.59

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Solution

The fourth proportional to 262.12, 361.76 and 151.59 is: 209.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.12 : 361.76 = 151.59 : x
  2. Step 2: Convert to fraction form
    262.12/361.76 = 151.59/x
  3. Step 3: Cross multiply
    262.12x = 361.76 × 151.59
  4. Step 4: Simplify right side
    262.12x = 54,840.03
  5. Step 5: Solve for x
    x = 54,840.03/262.12
  6. Step 6: Final answer
    x = 209.22

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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.