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Finding the Fourth Proportional to 150.54, 207.87 and 101.58

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Solution

The fourth proportional to 150.54, 207.87 and 101.58 is: 140.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    150.54 : 207.87 = 101.58 : x
  2. Step 2: Convert to fraction form
    150.54/207.87 = 101.58/x
  3. Step 3: Cross multiply
    150.54x = 207.87 × 101.58
  4. Step 4: Simplify right side
    150.54x = 21,115.43
  5. Step 5: Solve for x
    x = 21,115.43/150.54
  6. Step 6: Final answer
    x = 140.26

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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.