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Finding the Fourth Proportional to 654,660.51, 981,959.18 and 228,179.12

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Solution

The fourth proportional to 654,660.51, 981,959.18 and 228,179.12 is: 342,257.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,660.51 : 981,959.18 = 228,179.12 : x
  2. Step 2: Convert to fraction form
    654,660.51/981,959.18 = 228,179.12/x
  3. Step 3: Cross multiply
    654,660.51x = 981,959.18 × 228,179.12
  4. Step 4: Simplify right side
    654,660.51x = 224,062,575,517.63
  5. Step 5: Solve for x
    x = 224,062,575,517.63/654,660.51
  6. Step 6: Final answer
    x = 342,257.66

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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.