Home / 281,942.24-422,927.66-82,277.78

Finding the Fourth Proportional to 281,942.24, 422,927.66 and 82,277.78

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Solution

The fourth proportional to 281,942.24, 422,927.66 and 82,277.78 is: 123,420.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,942.24 : 422,927.66 = 82,277.78 : x
  2. Step 2: Convert to fraction form
    281,942.24/422,927.66 = 82,277.78/x
  3. Step 3: Cross multiply
    281,942.24x = 422,927.66 × 82,277.78
  4. Step 4: Simplify right side
    281,942.24x = 34,797,547,056.45
  5. Step 5: Solve for x
    x = 34,797,547,056.45/281,942.24
  6. Step 6: Final answer
    x = 123,420.84

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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.