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Finding the Fourth Proportional to 252,046.95, 378,070.43 and 74,540.14

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Solution

The fourth proportional to 252,046.95, 378,070.43 and 74,540.14 is: 111,810.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,046.95 : 378,070.43 = 74,540.14 : x
  2. Step 2: Convert to fraction form
    252,046.95/378,070.43 = 74,540.14/x
  3. Step 3: Cross multiply
    252,046.95x = 378,070.43 × 74,540.14
  4. Step 4: Simplify right side
    252,046.95x = 28,181,422,023.23
  5. Step 5: Solve for x
    x = 28,181,422,023.23/252,046.95
  6. Step 6: Final answer
    x = 111,810.21

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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.