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Finding the Fourth Proportional to 1,334.75, 2,002.12 and 360.85

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Solution

The fourth proportional to 1,334.75, 2,002.12 and 360.85 is: 541.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,334.75 : 2,002.12 = 360.85 : x
  2. Step 2: Convert to fraction form
    1,334.75/2,002.12 = 360.85/x
  3. Step 3: Cross multiply
    1,334.75x = 2,002.12 × 360.85
  4. Step 4: Simplify right side
    1,334.75x = 722,460.90
  5. Step 5: Solve for x
    x = 722,460.90/1,334.75
  6. Step 6: Final answer
    x = 541.27

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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.