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Finding the Fourth Proportional to 150.77, 226.00 and 139.33

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Solution

The fourth proportional to 150.77, 226.00 and 139.33 is: 208.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    150.77 : 226.00 = 139.33 : x
  2. Step 2: Convert to fraction form
    150.77/226.00 = 139.33/x
  3. Step 3: Cross multiply
    150.77x = 226.00 × 139.33
  4. Step 4: Simplify right side
    150.77x = 31,486.75
  5. Step 5: Solve for x
    x = 31,486.75/150.77
  6. Step 6: Final answer
    x = 208.85

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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.