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Finding the Fourth Proportional to 356.13, 534.13 and 112.66

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Solution

The fourth proportional to 356.13, 534.13 and 112.66 is: 168.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.13 : 534.13 = 112.66 : x
  2. Step 2: Convert to fraction form
    356.13/534.13 = 112.66/x
  3. Step 3: Cross multiply
    356.13x = 534.13 × 112.66
  4. Step 4: Simplify right side
    356.13x = 60,173.47
  5. Step 5: Solve for x
    x = 60,173.47/356.13
  6. Step 6: Final answer
    x = 168.96

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