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Finding the Fourth Proportional to 402.94, 603.61 and 229.65

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Solution

The fourth proportional to 402.94, 603.61 and 229.65 is: 344.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    402.94 : 603.61 = 229.65 : x
  2. Step 2: Convert to fraction form
    402.94/603.61 = 229.65/x
  3. Step 3: Cross multiply
    402.94x = 603.61 × 229.65
  4. Step 4: Simplify right side
    402.94x = 138,619.04
  5. Step 5: Solve for x
    x = 138,619.04/402.94
  6. Step 6: Final answer
    x = 344.02

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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.