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Finding the Fourth Proportional to 613.01, 919.50 and 150.80

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Solution

The fourth proportional to 613.01, 919.50 and 150.80 is: 226.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    613.01 : 919.50 = 150.80 : x
  2. Step 2: Convert to fraction form
    613.01/919.50 = 150.80/x
  3. Step 3: Cross multiply
    613.01x = 919.50 × 150.80
  4. Step 4: Simplify right side
    613.01x = 138,656.00
  5. Step 5: Solve for x
    x = 138,656.00/613.01
  6. Step 6: Final answer
    x = 226.19

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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.