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Finding the Fourth Proportional to 602.91, 903.16 and 342.97

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Solution

The fourth proportional to 602.91, 903.16 and 342.97 is: 513.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.91 : 903.16 = 342.97 : x
  2. Step 2: Convert to fraction form
    602.91/903.16 = 342.97/x
  3. Step 3: Cross multiply
    602.91x = 903.16 × 342.97
  4. Step 4: Simplify right side
    602.91x = 309,759.25
  5. Step 5: Solve for x
    x = 309,759.25/602.91
  6. Step 6: Final answer
    x = 513.78

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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.