Home / 400,135.28-552,166.22-218,811.96

Finding the Fourth Proportional to 400,135.28, 552,166.22 and 218,811.96

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Solution

The fourth proportional to 400,135.28, 552,166.22 and 218,811.96 is: 301,949.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,135.28 : 552,166.22 = 218,811.96 : x
  2. Step 2: Convert to fraction form
    400,135.28/552,166.22 = 218,811.96/x
  3. Step 3: Cross multiply
    400,135.28x = 552,166.22 × 218,811.96
  4. Step 4: Simplify right side
    400,135.28x = 120,820,572,843.99
  5. Step 5: Solve for x
    x = 120,820,572,843.99/400,135.28
  6. Step 6: Final answer
    x = 301,949.31

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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.