Home / 256,121.33-384,115.03-76,158.29

Finding the Fourth Proportional to 256,121.33, 384,115.03 and 76,158.29

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Solution

The fourth proportional to 256,121.33, 384,115.03 and 76,158.29 is: 114,217.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,121.33 : 384,115.03 = 76,158.29 : x
  2. Step 2: Convert to fraction form
    256,121.33/384,115.03 = 76,158.29/x
  3. Step 3: Cross multiply
    256,121.33x = 384,115.03 × 76,158.29
  4. Step 4: Simplify right side
    256,121.33x = 29,253,544,617.99
  5. Step 5: Solve for x
    x = 29,253,544,617.99/256,121.33
  6. Step 6: Final answer
    x = 114,217.53

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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.