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Finding the Fourth Proportional to 252,618.93, 378,600.12 and 102,684.56

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Solution

The fourth proportional to 252,618.93, 378,600.12 and 102,684.56 is: 153,893.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,618.93 : 378,600.12 = 102,684.56 : x
  2. Step 2: Convert to fraction form
    252,618.93/378,600.12 = 102,684.56/x
  3. Step 3: Cross multiply
    252,618.93x = 378,600.12 × 102,684.56
  4. Step 4: Simplify right side
    252,618.93x = 38,876,384,845.15
  5. Step 5: Solve for x
    x = 38,876,384,845.15/252,618.93
  6. Step 6: Final answer
    x = 153,893.40

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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.