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Finding the Fourth Proportional to 537,781.86, 806,673.06 and 221,891.58

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Solution

The fourth proportional to 537,781.86, 806,673.06 and 221,891.58 is: 332,837.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,781.86 : 806,673.06 = 221,891.58 : x
  2. Step 2: Convert to fraction form
    537,781.86/806,673.06 = 221,891.58/x
  3. Step 3: Cross multiply
    537,781.86x = 806,673.06 × 221,891.58
  4. Step 4: Simplify right side
    537,781.86x = 178,993,959,826.84
  5. Step 5: Solve for x
    x = 178,993,959,826.84/537,781.86
  6. Step 6: Final answer
    x = 332,837.48

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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.