Home / 281,380.92-422,019.81-76,219.53

Finding the Fourth Proportional to 281,380.92, 422,019.81 and 76,219.53

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Solution

The fourth proportional to 281,380.92, 422,019.81 and 76,219.53 is: 114,315.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,380.92 : 422,019.81 = 76,219.53 : x
  2. Step 2: Convert to fraction form
    281,380.92/422,019.81 = 76,219.53/x
  3. Step 3: Cross multiply
    281,380.92x = 422,019.81 × 76,219.53
  4. Step 4: Simplify right side
    281,380.92x = 32,166,151,568.89
  5. Step 5: Solve for x
    x = 32,166,151,568.89/281,380.92
  6. Step 6: Final answer
    x = 114,315.33

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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.