Home / 312,764.23-431,609.96-176,793.41

Finding the Fourth Proportional to 312,764.23, 431,609.96 and 176,793.41

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Solution

The fourth proportional to 312,764.23, 431,609.96 and 176,793.41 is: 243,972.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,764.23 : 431,609.96 = 176,793.41 : x
  2. Step 2: Convert to fraction form
    312,764.23/431,609.96 = 176,793.41/x
  3. Step 3: Cross multiply
    312,764.23x = 431,609.96 × 176,793.41
  4. Step 4: Simplify right side
    312,764.23x = 76,305,798,139.37
  5. Step 5: Solve for x
    x = 76,305,798,139.37/312,764.23
  6. Step 6: Final answer
    x = 243,972.27

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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.