Home / 323,780.19-486,092.65-217,639.61

Finding the Fourth Proportional to 323,780.19, 486,092.65 and 217,639.61

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Solution

The fourth proportional to 323,780.19, 486,092.65 and 217,639.61 is: 326,743.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,780.19 : 486,092.65 = 217,639.61 : x
  2. Step 2: Convert to fraction form
    323,780.19/486,092.65 = 217,639.61/x
  3. Step 3: Cross multiply
    323,780.19x = 486,092.65 × 217,639.61
  4. Step 4: Simplify right side
    323,780.19x = 105,793,015,441.00
  5. Step 5: Solve for x
    x = 105,793,015,441.00/323,780.19
  6. Step 6: Final answer
    x = 326,743.32

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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.