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Finding the Fourth Proportional to 150.22, 207.50 and 122.93

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Solution

The fourth proportional to 150.22, 207.50 and 122.93 is: 169.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    150.22 : 207.50 = 122.93 : x
  2. Step 2: Convert to fraction form
    150.22/207.50 = 122.93/x
  3. Step 3: Cross multiply
    150.22x = 207.50 × 122.93
  4. Step 4: Simplify right side
    150.22x = 25,507.98
  5. Step 5: Solve for x
    x = 25,507.98/150.22
  6. Step 6: Final answer
    x = 169.80

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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.