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Finding the Fourth Proportional to 164.72, 245.50 and 158.60

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Solution

The fourth proportional to 164.72, 245.50 and 158.60 is: 236.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.72 : 245.50 = 158.60 : x
  2. Step 2: Convert to fraction form
    164.72/245.50 = 158.60/x
  3. Step 3: Cross multiply
    164.72x = 245.50 × 158.60
  4. Step 4: Simplify right side
    164.72x = 38,936.30
  5. Step 5: Solve for x
    x = 38,936.30/164.72
  6. Step 6: Final answer
    x = 236.38

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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.