Home / 358,660.92-494,929.26-215,427

Finding the Fourth Proportional to 358,660.92, 494,929.26 and 215,427

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Solution

The fourth proportional to 358,660.92, 494,929.26 and 215,427 is: 297,275.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,660.92 : 494,929.26 = 215,427 : x
  2. Step 2: Convert to fraction form
    358,660.92/494,929.26 = 215,427/x
  3. Step 3: Cross multiply
    358,660.92x = 494,929.26 × 215,427
  4. Step 4: Simplify right side
    358,660.92x = 106,621,125,694.02
  5. Step 5: Solve for x
    x = 106,621,125,694.02/358,660.92
  6. Step 6: Final answer
    x = 297,275.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.