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Finding the Fourth Proportional to 251,325, 346,829.22 and 143,896.68

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Solution

The fourth proportional to 251,325, 346,829.22 and 143,896.68 is: 198,577.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,325 : 346,829.22 = 143,896.68 : x
  2. Step 2: Convert to fraction form
    251,325/346,829.22 = 143,896.68/x
  3. Step 3: Cross multiply
    251,325x = 346,829.22 × 143,896.68
  4. Step 4: Simplify right side
    251,325x = 49,907,573,284.99
  5. Step 5: Solve for x
    x = 49,907,573,284.99/251,325
  6. Step 6: Final answer
    x = 198,577.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.