Home / 205,012.54-307,507.86-55,250.42

Finding the Fourth Proportional to 205,012.54, 307,507.86 and 55,250.42

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Solution

The fourth proportional to 205,012.54, 307,507.86 and 55,250.42 is: 82,872.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,012.54 : 307,507.86 = 55,250.42 : x
  2. Step 2: Convert to fraction form
    205,012.54/307,507.86 = 55,250.42/x
  3. Step 3: Cross multiply
    205,012.54x = 307,507.86 × 55,250.42
  4. Step 4: Simplify right side
    205,012.54x = 16,989,938,418.30
  5. Step 5: Solve for x
    x = 16,989,938,418.30/205,012.54
  6. Step 6: Final answer
    x = 82,872.68

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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.