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Finding the Fourth Proportional to 252,221.88, 378,340.74 and 94,420.20

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Solution

The fourth proportional to 252,221.88, 378,340.74 and 94,420.20 is: 141,633.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,221.88 : 378,340.74 = 94,420.20 : x
  2. Step 2: Convert to fraction form
    252,221.88/378,340.74 = 94,420.20/x
  3. Step 3: Cross multiply
    252,221.88x = 378,340.74 × 94,420.20
  4. Step 4: Simplify right side
    252,221.88x = 35,723,008,338.95
  5. Step 5: Solve for x
    x = 35,723,008,338.95/252,221.88
  6. Step 6: Final answer
    x = 141,633.26

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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.