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Finding the Fourth Proportional to 933.23, 1,399.48 and 308.50

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Solution

The fourth proportional to 933.23, 1,399.48 and 308.50 is: 462.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    933.23 : 1,399.48 = 308.50 : x
  2. Step 2: Convert to fraction form
    933.23/1,399.48 = 308.50/x
  3. Step 3: Cross multiply
    933.23x = 1,399.48 × 308.50
  4. Step 4: Simplify right side
    933.23x = 431,738.04
  5. Step 5: Solve for x
    x = 431,738.04/933.23
  6. Step 6: Final answer
    x = 462.63

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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.