Home / 256,132.20-384,194.70-115,890.60

Finding the Fourth Proportional to 256,132.20, 384,194.70 and 115,890.60

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Solution

The fourth proportional to 256,132.20, 384,194.70 and 115,890.60 is: 173,834.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,132.20 : 384,194.70 = 115,890.60 : x
  2. Step 2: Convert to fraction form
    256,132.20/384,194.70 = 115,890.60/x
  3. Step 3: Cross multiply
    256,132.20x = 384,194.70 × 115,890.60
  4. Step 4: Simplify right side
    256,132.20x = 44,524,554,299.82
  5. Step 5: Solve for x
    x = 44,524,554,299.82/256,132.20
  6. Step 6: Final answer
    x = 173,834.27

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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.