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Finding the Fourth Proportional to 378,844.80, 567,806.40 and 168,259.20

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Solution

The fourth proportional to 378,844.80, 567,806.40 and 168,259.20 is: 252,184.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,844.80 : 567,806.40 = 168,259.20 : x
  2. Step 2: Convert to fraction form
    378,844.80/567,806.40 = 168,259.20/x
  3. Step 3: Cross multiply
    378,844.80x = 567,806.40 × 168,259.20
  4. Step 4: Simplify right side
    378,844.80x = 95,538,650,618.88
  5. Step 5: Solve for x
    x = 95,538,650,618.88/378,844.80
  6. Step 6: Final answer
    x = 252,184.14

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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.