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Finding the Fourth Proportional to 150.63, 225.63 and 105.07

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Solution

The fourth proportional to 150.63, 225.63 and 105.07 is: 157.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    150.63 : 225.63 = 105.07 : x
  2. Step 2: Convert to fraction form
    150.63/225.63 = 105.07/x
  3. Step 3: Cross multiply
    150.63x = 225.63 × 105.07
  4. Step 4: Simplify right side
    150.63x = 23,706.94
  5. Step 5: Solve for x
    x = 23,706.94/150.63
  6. Step 6: Final answer
    x = 157.39

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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.