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Finding the Fourth Proportional to 149.93, 224.51 and 104.31

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Solution

The fourth proportional to 149.93, 224.51 and 104.31 is: 156.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    149.93 : 224.51 = 104.31 : x
  2. Step 2: Convert to fraction form
    149.93/224.51 = 104.31/x
  3. Step 3: Cross multiply
    149.93x = 224.51 × 104.31
  4. Step 4: Simplify right side
    149.93x = 23,418.48
  5. Step 5: Solve for x
    x = 23,418.48/149.93
  6. Step 6: Final answer
    x = 156.20

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.