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Finding the Fourth Proportional to 265,961.04, 398,863.48 and 219,097.68

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Solution

The fourth proportional to 265,961.04, 398,863.48 and 219,097.68 is: 328,582.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,961.04 : 398,863.48 = 219,097.68 : x
  2. Step 2: Convert to fraction form
    265,961.04/398,863.48 = 219,097.68/x
  3. Step 3: Cross multiply
    265,961.04x = 398,863.48 × 219,097.68
  4. Step 4: Simplify right side
    265,961.04x = 87,390,063,104.73
  5. Step 5: Solve for x
    x = 87,390,063,104.73/265,961.04
  6. Step 6: Final answer
    x = 328,582.20

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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.