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Finding the Fourth Proportional to 483.30, 719.14 and 481.68

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Solution

The fourth proportional to 483.30, 719.14 and 481.68 is: 716.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.30 : 719.14 = 481.68 : x
  2. Step 2: Convert to fraction form
    483.30/719.14 = 481.68/x
  3. Step 3: Cross multiply
    483.30x = 719.14 × 481.68
  4. Step 4: Simplify right side
    483.30x = 346,397.15
  5. Step 5: Solve for x
    x = 346,397.15/483.30
  6. Step 6: Final answer
    x = 716.73

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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.