Home / 410,740.29-616,342.40-221,196.64

Finding the Fourth Proportional to 410,740.29, 616,342.40 and 221,196.64

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Solution

The fourth proportional to 410,740.29, 616,342.40 and 221,196.64 is: 331,919.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,740.29 : 616,342.40 = 221,196.64 : x
  2. Step 2: Convert to fraction form
    410,740.29/616,342.40 = 221,196.64/x
  3. Step 3: Cross multiply
    410,740.29x = 616,342.40 × 221,196.64
  4. Step 4: Simplify right side
    410,740.29x = 136,332,867,969.54
  5. Step 5: Solve for x
    x = 136,332,867,969.54/410,740.29
  6. Step 6: Final answer
    x = 331,919.88

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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.