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Finding the Fourth Proportional to 158.73, 236.75 and 145.07

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Solution

The fourth proportional to 158.73, 236.75 and 145.07 is: 216.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    158.73 : 236.75 = 145.07 : x
  2. Step 2: Convert to fraction form
    158.73/236.75 = 145.07/x
  3. Step 3: Cross multiply
    158.73x = 236.75 × 145.07
  4. Step 4: Simplify right side
    158.73x = 34,343.41
  5. Step 5: Solve for x
    x = 34,343.41/158.73
  6. Step 6: Final answer
    x = 216.36

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.