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Finding the Fourth Proportional to 164.03, 243.93 and 158.90

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Solution

The fourth proportional to 164.03, 243.93 and 158.90 is: 236.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.03 : 243.93 = 158.90 : x
  2. Step 2: Convert to fraction form
    164.03/243.93 = 158.90/x
  3. Step 3: Cross multiply
    164.03x = 243.93 × 158.90
  4. Step 4: Simplify right side
    164.03x = 38,759.68
  5. Step 5: Solve for x
    x = 38,759.68/164.03
  6. Step 6: Final answer
    x = 236.30

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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.