Home / 410,738.29-616,339.40-221,194.64

Finding the Fourth Proportional to 410,738.29, 616,339.40 and 221,194.64

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Solution

The fourth proportional to 410,738.29, 616,339.40 and 221,194.64 is: 331,916.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,738.29 : 616,339.40 = 221,194.64 : x
  2. Step 2: Convert to fraction form
    410,738.29/616,339.40 = 221,194.64/x
  3. Step 3: Cross multiply
    410,738.29x = 616,339.40 × 221,194.64
  4. Step 4: Simplify right side
    410,738.29x = 136,330,972,135.69
  5. Step 5: Solve for x
    x = 136,330,972,135.69/410,738.29
  6. Step 6: Final answer
    x = 331,916.88

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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.