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Finding the Fourth Proportional to 163.52, 245.27 and 66.06

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Solution

The fourth proportional to 163.52, 245.27 and 66.06 is: 99.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.52 : 245.27 = 66.06 : x
  2. Step 2: Convert to fraction form
    163.52/245.27 = 66.06/x
  3. Step 3: Cross multiply
    163.52x = 245.27 × 66.06
  4. Step 4: Simplify right side
    163.52x = 16,202.21
  5. Step 5: Solve for x
    x = 16,202.21/163.52
  6. Step 6: Final answer
    x = 99.09

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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.