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Finding the Fourth Proportional to 164.15, 246.50 and 158.75

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Solution

The fourth proportional to 164.15, 246.50 and 158.75 is: 238.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.15 : 246.50 = 158.75 : x
  2. Step 2: Convert to fraction form
    164.15/246.50 = 158.75/x
  3. Step 3: Cross multiply
    164.15x = 246.50 × 158.75
  4. Step 4: Simplify right side
    164.15x = 39,131.88
  5. Step 5: Solve for x
    x = 39,131.88/164.15
  6. Step 6: Final answer
    x = 238.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.