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Finding the Fourth Proportional to 483.97, 724.50 and 266.89

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Solution

The fourth proportional to 483.97, 724.50 and 266.89 is: 399.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.97 : 724.50 = 266.89 : x
  2. Step 2: Convert to fraction form
    483.97/724.50 = 266.89/x
  3. Step 3: Cross multiply
    483.97x = 724.50 × 266.89
  4. Step 4: Simplify right side
    483.97x = 193,361.81
  5. Step 5: Solve for x
    x = 193,361.81/483.97
  6. Step 6: Final answer
    x = 399.53

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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.