Home / 217,825.80-326,738.70-143,176.20

Finding the Fourth Proportional to 217,825.80, 326,738.70 and 143,176.20

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Solution

The fourth proportional to 217,825.80, 326,738.70 and 143,176.20 is: 214,764.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,825.80 : 326,738.70 = 143,176.20 : x
  2. Step 2: Convert to fraction form
    217,825.80/326,738.70 = 143,176.20/x
  3. Step 3: Cross multiply
    217,825.80x = 326,738.70 × 143,176.20
  4. Step 4: Simplify right side
    217,825.80x = 46,781,205,458.94
  5. Step 5: Solve for x
    x = 46,781,205,458.94/217,825.80
  6. Step 6: Final answer
    x = 214,764.30

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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.