Home / 281,867.13-422,357.24-217,981.67

Finding the Fourth Proportional to 281,867.13, 422,357.24 and 217,981.67

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Solution

The fourth proportional to 281,867.13, 422,357.24 and 217,981.67 is: 326,629.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,867.13 : 422,357.24 = 217,981.67 : x
  2. Step 2: Convert to fraction form
    281,867.13/422,357.24 = 217,981.67/x
  3. Step 3: Cross multiply
    281,867.13x = 422,357.24 × 217,981.67
  4. Step 4: Simplify right side
    281,867.13x = 92,066,134,944.96
  5. Step 5: Solve for x
    x = 92,066,134,944.96/281,867.13
  6. Step 6: Final answer
    x = 326,629.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.