Home / 307,581.73-461,396.75-82,938.78

Finding the Fourth Proportional to 307,581.73, 461,396.75 and 82,938.78

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Solution

The fourth proportional to 307,581.73, 461,396.75 and 82,938.78 is: 124,414.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,581.73 : 461,396.75 = 82,938.78 : x
  2. Step 2: Convert to fraction form
    307,581.73/461,396.75 = 82,938.78/x
  3. Step 3: Cross multiply
    307,581.73x = 461,396.75 × 82,938.78
  4. Step 4: Simplify right side
    307,581.73x = 38,267,685,478.55
  5. Step 5: Solve for x
    x = 38,267,685,478.55/307,581.73
  6. Step 6: Final answer
    x = 124,414.69

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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.