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Finding the Fourth Proportional to 344,025.60, 515,163.60 and 328,279.20

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Solution

The fourth proportional to 344,025.60, 515,163.60 and 328,279.20 is: 491,584.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,025.60 : 515,163.60 = 328,279.20 : x
  2. Step 2: Convert to fraction form
    344,025.60/515,163.60 = 328,279.20/x
  3. Step 3: Cross multiply
    344,025.60x = 515,163.60 × 328,279.20
  4. Step 4: Simplify right side
    344,025.60x = 169,117,494,477.12
  5. Step 5: Solve for x
    x = 169,117,494,477.12/344,025.60
  6. Step 6: Final answer
    x = 491,584.04

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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.