Home / 259,363.50-388,951.66-109,615.38

Finding the Fourth Proportional to 259,363.50, 388,951.66 and 109,615.38

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Solution

The fourth proportional to 259,363.50, 388,951.66 and 109,615.38 is: 164,383.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,363.50 : 388,951.66 = 109,615.38 : x
  2. Step 2: Convert to fraction form
    259,363.50/388,951.66 = 109,615.38/x
  3. Step 3: Cross multiply
    259,363.50x = 388,951.66 × 109,615.38
  4. Step 4: Simplify right side
    259,363.50x = 42,635,084,012.53
  5. Step 5: Solve for x
    x = 42,635,084,012.53/259,363.50
  6. Step 6: Final answer
    x = 164,383.52

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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.