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Finding the Fourth Proportional to 164.39, 246.65 and 113.02

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Solution

The fourth proportional to 164.39, 246.65 and 113.02 is: 169.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.39 : 246.65 = 113.02 : x
  2. Step 2: Convert to fraction form
    164.39/246.65 = 113.02/x
  3. Step 3: Cross multiply
    164.39x = 246.65 × 113.02
  4. Step 4: Simplify right side
    164.39x = 27,875.20
  5. Step 5: Solve for x
    x = 27,875.20/164.39
  6. Step 6: Final answer
    x = 169.57

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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.