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Finding the Fourth Proportional to 1,173.03, 1,759.84 and 351.30

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Solution

The fourth proportional to 1,173.03, 1,759.84 and 351.30 is: 527.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173.03 : 1,759.84 = 351.30 : x
  2. Step 2: Convert to fraction form
    1,173.03/1,759.84 = 351.30/x
  3. Step 3: Cross multiply
    1,173.03x = 1,759.84 × 351.30
  4. Step 4: Simplify right side
    1,173.03x = 618,231.79
  5. Step 5: Solve for x
    x = 618,231.79/1,173.03
  6. Step 6: Final answer
    x = 527.04

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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.