Home / 320,816.38-481,187.60-84,177.52

Finding the Fourth Proportional to 320,816.38, 481,187.60 and 84,177.52

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Solution

The fourth proportional to 320,816.38, 481,187.60 and 84,177.52 is: 126,256.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,816.38 : 481,187.60 = 84,177.52 : x
  2. Step 2: Convert to fraction form
    320,816.38/481,187.60 = 84,177.52/x
  3. Step 3: Cross multiply
    320,816.38x = 481,187.60 × 84,177.52
  4. Step 4: Simplify right side
    320,816.38x = 40,505,178,822.75
  5. Step 5: Solve for x
    x = 40,505,178,822.75/320,816.38
  6. Step 6: Final answer
    x = 126,256.58

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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.