Home / 312,769.39-431,617.07-176,798.56

Finding the Fourth Proportional to 312,769.39, 431,617.07 and 176,798.56

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Solution

The fourth proportional to 312,769.39, 431,617.07 and 176,798.56 is: 243,979.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,769.39 : 431,617.07 = 176,798.56 : x
  2. Step 2: Convert to fraction form
    312,769.39/431,617.07 = 176,798.56/x
  3. Step 3: Cross multiply
    312,769.39x = 431,617.07 × 176,798.56
  4. Step 4: Simplify right side
    312,769.39x = 76,309,276,447.42
  5. Step 5: Solve for x
    x = 76,309,276,447.42/312,769.39
  6. Step 6: Final answer
    x = 243,979.36

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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.