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Finding the Fourth Proportional to 483.43, 719.33 and 481.81

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Solution

The fourth proportional to 483.43, 719.33 and 481.81 is: 716.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.43 : 719.33 = 481.81 : x
  2. Step 2: Convert to fraction form
    483.43/719.33 = 481.81/x
  3. Step 3: Cross multiply
    483.43x = 719.33 × 481.81
  4. Step 4: Simplify right side
    483.43x = 346,576.18
  5. Step 5: Solve for x
    x = 346,576.18/483.43
  6. Step 6: Final answer
    x = 716.91

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.