Home / 320,784.36-481,285.17-121,162.38

Finding the Fourth Proportional to 320,784.36, 481,285.17 and 121,162.38

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Solution

The fourth proportional to 320,784.36, 481,285.17 and 121,162.38 is: 181,784.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,784.36 : 481,285.17 = 121,162.38 : x
  2. Step 2: Convert to fraction form
    320,784.36/481,285.17 = 121,162.38/x
  3. Step 3: Cross multiply
    320,784.36x = 481,285.17 × 121,162.38
  4. Step 4: Simplify right side
    320,784.36x = 58,313,656,655.90
  5. Step 5: Solve for x
    x = 58,313,656,655.90/320,784.36
  6. Step 6: Final answer
    x = 181,784.60

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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.