Home / 322,927.70-445,701.90-213,839.76

Finding the Fourth Proportional to 322,927.70, 445,701.90 and 213,839.76

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Solution

The fourth proportional to 322,927.70, 445,701.90 and 213,839.76 is: 295,139.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,927.70 : 445,701.90 = 213,839.76 : x
  2. Step 2: Convert to fraction form
    322,927.70/445,701.90 = 213,839.76/x
  3. Step 3: Cross multiply
    322,927.70x = 445,701.90 × 213,839.76
  4. Step 4: Simplify right side
    322,927.70x = 95,308,787,327.54
  5. Step 5: Solve for x
    x = 95,308,787,327.54/322,927.70
  6. Step 6: Final answer
    x = 295,139.71

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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.