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Finding the Fourth Proportional to 603.10, 903.13 and 481.60

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Solution

The fourth proportional to 603.10, 903.13 and 481.60 is: 721.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.10 : 903.13 = 481.60 : x
  2. Step 2: Convert to fraction form
    603.10/903.13 = 481.60/x
  3. Step 3: Cross multiply
    603.10x = 903.13 × 481.60
  4. Step 4: Simplify right side
    603.10x = 434,947.41
  5. Step 5: Solve for x
    x = 434,947.41/603.10
  6. Step 6: Final answer
    x = 721.19

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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.