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Finding the Fourth Proportional to 1,600.20, 2,401.65 and 908.28

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Solution

The fourth proportional to 1,600.20, 2,401.65 and 908.28 is: 1,363.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,600.20 : 2,401.65 = 908.28 : x
  2. Step 2: Convert to fraction form
    1,600.20/2,401.65 = 908.28/x
  3. Step 3: Cross multiply
    1,600.20x = 2,401.65 × 908.28
  4. Step 4: Simplify right side
    1,600.20x = 2,181,370.66
  5. Step 5: Solve for x
    x = 2,181,370.66/1,600.20
  6. Step 6: Final answer
    x = 1,363.19

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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.