Home / 206,255.22-309,338.28-73,139.82

Finding the Fourth Proportional to 206,255.22, 309,338.28 and 73,139.82

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Solution

The fourth proportional to 206,255.22, 309,338.28 and 73,139.82 is: 109,693.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,255.22 : 309,338.28 = 73,139.82 : x
  2. Step 2: Convert to fraction form
    206,255.22/309,338.28 = 73,139.82/x
  3. Step 3: Cross multiply
    206,255.22x = 309,338.28 × 73,139.82
  4. Step 4: Simplify right side
    206,255.22x = 22,624,946,118.31
  5. Step 5: Solve for x
    x = 22,624,946,118.31/206,255.22
  6. Step 6: Final answer
    x = 109,693.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.