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Finding the Fourth Proportional to 583.13, 872.60 and 351.20

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Solution

The fourth proportional to 583.13, 872.60 and 351.20 is: 525.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.13 : 872.60 = 351.20 : x
  2. Step 2: Convert to fraction form
    583.13/872.60 = 351.20/x
  3. Step 3: Cross multiply
    583.13x = 872.60 × 351.20
  4. Step 4: Simplify right side
    583.13x = 306,451.00
  5. Step 5: Solve for x
    x = 306,451.00/583.13
  6. Step 6: Final answer
    x = 525.53

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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.