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Finding the Fourth Proportional to 150.99, 226.47 and 115.14

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Solution

The fourth proportional to 150.99, 226.47 and 115.14 is: 172.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    150.99 : 226.47 = 115.14 : x
  2. Step 2: Convert to fraction form
    150.99/226.47 = 115.14/x
  3. Step 3: Cross multiply
    150.99x = 226.47 × 115.14
  4. Step 4: Simplify right side
    150.99x = 26,075.76
  5. Step 5: Solve for x
    x = 26,075.76/150.99
  6. Step 6: Final answer
    x = 172.70

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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.