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Finding the Fourth Proportional to 164.19, 245.67 and 123.48

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Solution

The fourth proportional to 164.19, 245.67 and 123.48 is: 184.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.19 : 245.67 = 123.48 : x
  2. Step 2: Convert to fraction form
    164.19/245.67 = 123.48/x
  3. Step 3: Cross multiply
    164.19x = 245.67 × 123.48
  4. Step 4: Simplify right side
    164.19x = 30,335.33
  5. Step 5: Solve for x
    x = 30,335.33/164.19
  6. Step 6: Final answer
    x = 184.76

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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.