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Finding the Fourth Proportional to 150.56, 208.14 and 101.69

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Solution

The fourth proportional to 150.56, 208.14 and 101.69 is: 140.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    150.56 : 208.14 = 101.69 : x
  2. Step 2: Convert to fraction form
    150.56/208.14 = 101.69/x
  3. Step 3: Cross multiply
    150.56x = 208.14 × 101.69
  4. Step 4: Simplify right side
    150.56x = 21,164.72
  5. Step 5: Solve for x
    x = 21,164.72/150.56
  6. Step 6: Final answer
    x = 140.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.