Home / 312,891.06-431,667.51-204,123.27

Finding the Fourth Proportional to 312,891.06, 431,667.51 and 204,123.27

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Solution

The fourth proportional to 312,891.06, 431,667.51 and 204,123.27 is: 281,610.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,891.06 : 431,667.51 = 204,123.27 : x
  2. Step 2: Convert to fraction form
    312,891.06/431,667.51 = 204,123.27/x
  3. Step 3: Cross multiply
    312,891.06x = 431,667.51 × 204,123.27
  4. Step 4: Simplify right side
    312,891.06x = 88,113,383,693.96
  5. Step 5: Solve for x
    x = 88,113,383,693.96/312,891.06
  6. Step 6: Final answer
    x = 281,610.42

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1.5x scale

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.