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Finding the Fourth Proportional to 600.28, 900.69 and 311.92

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Solution

The fourth proportional to 600.28, 900.69 and 311.92 is: 468.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    600.28 : 900.69 = 311.92 : x
  2. Step 2: Convert to fraction form
    600.28/900.69 = 311.92/x
  3. Step 3: Cross multiply
    600.28x = 900.69 × 311.92
  4. Step 4: Simplify right side
    600.28x = 280,943.22
  5. Step 5: Solve for x
    x = 280,943.22/600.28
  6. Step 6: Final answer
    x = 468.02

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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.