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Finding the Fourth Proportional to 158.96, 236.65 and 158.19

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Solution

The fourth proportional to 158.96, 236.65 and 158.19 is: 235.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    158.96 : 236.65 = 158.19 : x
  2. Step 2: Convert to fraction form
    158.96/236.65 = 158.19/x
  3. Step 3: Cross multiply
    158.96x = 236.65 × 158.19
  4. Step 4: Simplify right side
    158.96x = 37,435.66
  5. Step 5: Solve for x
    x = 37,435.66/158.96
  6. Step 6: Final answer
    x = 235.50

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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.