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Finding the Fourth Proportional to 235.53, 325.03 and 143.53

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Solution

The fourth proportional to 235.53, 325.03 and 143.53 is: 198.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.53 : 325.03 = 143.53 : x
  2. Step 2: Convert to fraction form
    235.53/325.03 = 143.53/x
  3. Step 3: Cross multiply
    235.53x = 325.03 × 143.53
  4. Step 4: Simplify right side
    235.53x = 46,652.73
  5. Step 5: Solve for x
    x = 46,652.73/235.53
  6. Step 6: Final answer
    x = 198.07

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.