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Finding the Fourth Proportional to 1,203.52, 1,805.34 and 337.90

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Solution

The fourth proportional to 1,203.52, 1,805.34 and 337.90 is: 506.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203.52 : 1,805.34 = 337.90 : x
  2. Step 2: Convert to fraction form
    1,203.52/1,805.34 = 337.90/x
  3. Step 3: Cross multiply
    1,203.52x = 1,805.34 × 337.90
  4. Step 4: Simplify right side
    1,203.52x = 610,019.87
  5. Step 5: Solve for x
    x = 610,019.87/1,203.52
  6. Step 6: Final answer
    x = 506.86

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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.