Home / 423,647.22-635,451.39-143,166.90

Finding the Fourth Proportional to 423,647.22, 635,451.39 and 143,166.90

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Solution

The fourth proportional to 423,647.22, 635,451.39 and 143,166.90 is: 214,743.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,647.22 : 635,451.39 = 143,166.90 : x
  2. Step 2: Convert to fraction form
    423,647.22/635,451.39 = 143,166.90/x
  3. Step 3: Cross multiply
    423,647.22x = 635,451.39 × 143,166.90
  4. Step 4: Simplify right side
    423,647.22x = 90,975,605,606.99
  5. Step 5: Solve for x
    x = 90,975,605,606.99/423,647.22
  6. Step 6: Final answer
    x = 214,743.78

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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.