Home / 386,245.22-532,912.74-231,134.06

Finding the Fourth Proportional to 386,245.22, 532,912.74 and 231,134.06

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Solution

The fourth proportional to 386,245.22, 532,912.74 and 231,134.06 is: 318,901.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,245.22 : 532,912.74 = 231,134.06 : x
  2. Step 2: Convert to fraction form
    386,245.22/532,912.74 = 231,134.06/x
  3. Step 3: Cross multiply
    386,245.22x = 532,912.74 × 231,134.06
  4. Step 4: Simplify right side
    386,245.22x = 123,174,285,221.92
  5. Step 5: Solve for x
    x = 123,174,285,221.92/386,245.22
  6. Step 6: Final answer
    x = 318,901.77

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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.