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Finding the Fourth Proportional to 143.36, 216.12 and 134.08

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Solution

The fourth proportional to 143.36, 216.12 and 134.08 is: 202.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    143.36 : 216.12 = 134.08 : x
  2. Step 2: Convert to fraction form
    143.36/216.12 = 134.08/x
  3. Step 3: Cross multiply
    143.36x = 216.12 × 134.08
  4. Step 4: Simplify right side
    143.36x = 28,977.37
  5. Step 5: Solve for x
    x = 28,977.37/143.36
  6. Step 6: Final answer
    x = 202.13

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.