Home / 313,057.02-431,986.32-177,105.81

Finding the Fourth Proportional to 313,057.02, 431,986.32 and 177,105.81

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Solution

The fourth proportional to 313,057.02, 431,986.32 and 177,105.81 is: 244,387.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,057.02 : 431,986.32 = 177,105.81 : x
  2. Step 2: Convert to fraction form
    313,057.02/431,986.32 = 177,105.81/x
  3. Step 3: Cross multiply
    313,057.02x = 431,986.32 × 177,105.81
  4. Step 4: Simplify right side
    313,057.02x = 76,507,287,112.52
  5. Step 5: Solve for x
    x = 76,507,287,112.52/313,057.02
  6. Step 6: Final answer
    x = 244,387.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.