Home / 217,823.80-326,735.70-143,174.20

Finding the Fourth Proportional to 217,823.80, 326,735.70 and 143,174.20

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Solution

The fourth proportional to 217,823.80, 326,735.70 and 143,174.20 is: 214,761.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,823.80 : 326,735.70 = 143,174.20 : x
  2. Step 2: Convert to fraction form
    217,823.80/326,735.70 = 143,174.20/x
  3. Step 3: Cross multiply
    217,823.80x = 326,735.70 × 143,174.20
  4. Step 4: Simplify right side
    217,823.80x = 46,780,122,458.94
  5. Step 5: Solve for x
    x = 46,780,122,458.94/217,823.80
  6. Step 6: Final answer
    x = 214,761.30

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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.