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Finding the Fourth Proportional to 483.45, 724.23 and 266.37

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Solution

The fourth proportional to 483.45, 724.23 and 266.37 is: 399.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.45 : 724.23 = 266.37 : x
  2. Step 2: Convert to fraction form
    483.45/724.23 = 266.37/x
  3. Step 3: Cross multiply
    483.45x = 724.23 × 266.37
  4. Step 4: Simplify right side
    483.45x = 192,913.15
  5. Step 5: Solve for x
    x = 192,913.15/483.45
  6. Step 6: Final answer
    x = 399.03

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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.