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Finding the Fourth Proportional to 150.08, 225.18 and 120.11

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Solution

The fourth proportional to 150.08, 225.18 and 120.11 is: 180.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    150.08 : 225.18 = 120.11 : x
  2. Step 2: Convert to fraction form
    150.08/225.18 = 120.11/x
  3. Step 3: Cross multiply
    150.08x = 225.18 × 120.11
  4. Step 4: Simplify right side
    150.08x = 27,045.24
  5. Step 5: Solve for x
    x = 27,045.24/150.08
  6. Step 6: Final answer
    x = 180.21

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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.