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Finding the Fourth Proportional to 400,556.88, 552,769.18 and 219,268.92

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Solution

The fourth proportional to 400,556.88, 552,769.18 and 219,268.92 is: 302,591.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,556.88 : 552,769.18 = 219,268.92 : x
  2. Step 2: Convert to fraction form
    400,556.88/552,769.18 = 219,268.92/x
  3. Step 3: Cross multiply
    400,556.88x = 552,769.18 × 219,268.92
  4. Step 4: Simplify right side
    400,556.88x = 121,205,101,107.89
  5. Step 5: Solve for x
    x = 121,205,101,107.89/400,556.88
  6. Step 6: Final answer
    x = 302,591.48

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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.