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Finding the Fourth Proportional to 603.89, 833.30 and 338.35

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Solution

The fourth proportional to 603.89, 833.30 and 338.35 is: 466.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.89 : 833.30 = 338.35 : x
  2. Step 2: Convert to fraction form
    603.89/833.30 = 338.35/x
  3. Step 3: Cross multiply
    603.89x = 833.30 × 338.35
  4. Step 4: Simplify right side
    603.89x = 281,947.06
  5. Step 5: Solve for x
    x = 281,947.06/603.89
  6. Step 6: Final answer
    x = 466.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.