Home / 377,350.22-520,711.78-222,276.88

Finding the Fourth Proportional to 377,350.22, 520,711.78 and 222,276.88

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Solution

The fourth proportional to 377,350.22, 520,711.78 and 222,276.88 is: 306,723.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,350.22 : 520,711.78 = 222,276.88 : x
  2. Step 2: Convert to fraction form
    377,350.22/520,711.78 = 222,276.88/x
  3. Step 3: Cross multiply
    377,350.22x = 520,711.78 × 222,276.88
  4. Step 4: Simplify right side
    377,350.22x = 115,742,189,932.84
  5. Step 5: Solve for x
    x = 115,742,189,932.84/377,350.22
  6. Step 6: Final answer
    x = 306,723.53

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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.