Home / 377,620.20-521,073.14-222,561.36

Finding the Fourth Proportional to 377,620.20, 521,073.14 and 222,561.36

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Solution

The fourth proportional to 377,620.20, 521,073.14 and 222,561.36 is: 307,109.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,620.20 : 521,073.14 = 222,561.36 : x
  2. Step 2: Convert to fraction form
    377,620.20/521,073.14 = 222,561.36/x
  3. Step 3: Cross multiply
    377,620.20x = 521,073.14 × 222,561.36
  4. Step 4: Simplify right side
    377,620.20x = 115,970,747,254.27
  5. Step 5: Solve for x
    x = 115,970,747,254.27/377,620.20
  6. Step 6: Final answer
    x = 307,109.49

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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.