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Finding the Fourth Proportional to 351,980.87, 485,761.68 and 199,051.25

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Solution

The fourth proportional to 351,980.87, 485,761.68 and 199,051.25 is: 274,706.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,980.87 : 485,761.68 = 199,051.25 : x
  2. Step 2: Convert to fraction form
    351,980.87/485,761.68 = 199,051.25/x
  3. Step 3: Cross multiply
    351,980.87x = 485,761.68 × 199,051.25
  4. Step 4: Simplify right side
    351,980.87x = 96,691,467,177.29
  5. Step 5: Solve for x
    x = 96,691,467,177.29/351,980.87
  6. Step 6: Final answer
    x = 274,706.60

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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.