Home / 380,916.92-571,414.28-131,566.52

Finding the Fourth Proportional to 380,916.92, 571,414.28 and 131,566.52

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Solution

The fourth proportional to 380,916.92, 571,414.28 and 131,566.52 is: 197,363.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,916.92 : 571,414.28 = 131,566.52 : x
  2. Step 2: Convert to fraction form
    380,916.92/571,414.28 = 131,566.52/x
  3. Step 3: Cross multiply
    380,916.92x = 571,414.28 × 131,566.52
  4. Step 4: Simplify right side
    380,916.92x = 75,178,988,297.91
  5. Step 5: Solve for x
    x = 75,178,988,297.91/380,916.92
  6. Step 6: Final answer
    x = 197,363.22

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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.