Home / 209,806.62-289,642.83-163,767.54

Finding the Fourth Proportional to 209,806.62, 289,642.83 and 163,767.54

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Solution

The fourth proportional to 209,806.62, 289,642.83 and 163,767.54 is: 226,084.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,806.62 : 289,642.83 = 163,767.54 : x
  2. Step 2: Convert to fraction form
    209,806.62/289,642.83 = 163,767.54/x
  3. Step 3: Cross multiply
    209,806.62x = 289,642.83 × 163,767.54
  4. Step 4: Simplify right side
    209,806.62x = 47,434,093,747.74
  5. Step 5: Solve for x
    x = 47,434,093,747.74/209,806.62
  6. Step 6: Final answer
    x = 226,084.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.