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Finding the Fourth Proportional to 158.73, 236.43 and 157.98

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Solution

The fourth proportional to 158.73, 236.43 and 157.98 is: 235.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    158.73 : 236.43 = 157.98 : x
  2. Step 2: Convert to fraction form
    158.73/236.43 = 157.98/x
  3. Step 3: Cross multiply
    158.73x = 236.43 × 157.98
  4. Step 4: Simplify right side
    158.73x = 37,351.21
  5. Step 5: Solve for x
    x = 37,351.21/158.73
  6. Step 6: Final answer
    x = 235.31

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Why These Related Problems?

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