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Finding the Fourth Proportional to 402.95, 603.41 and 337.79

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Solution

The fourth proportional to 402.95, 603.41 and 337.79 is: 505.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    402.95 : 603.41 = 337.79 : x
  2. Step 2: Convert to fraction form
    402.95/603.41 = 337.79/x
  3. Step 3: Cross multiply
    402.95x = 603.41 × 337.79
  4. Step 4: Simplify right side
    402.95x = 203,828.22
  5. Step 5: Solve for x
    x = 203,828.22/402.95
  6. Step 6: Final answer
    x = 505.84

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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.