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Finding the Fourth Proportional to 613.31, 919.33 and 202.34

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Solution

The fourth proportional to 613.31, 919.33 and 202.34 is: 303.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    613.31 : 919.33 = 202.34 : x
  2. Step 2: Convert to fraction form
    613.31/919.33 = 202.34/x
  3. Step 3: Cross multiply
    613.31x = 919.33 × 202.34
  4. Step 4: Simplify right side
    613.31x = 186,019.02
  5. Step 5: Solve for x
    x = 186,019.02/613.31
  6. Step 6: Final answer
    x = 303.31

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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.