Home / 443,145.45-664,578.73-143,556.51

Finding the Fourth Proportional to 443,145.45, 664,578.73 and 143,556.51

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Solution

The fourth proportional to 443,145.45, 664,578.73 and 143,556.51 is: 215,289.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,145.45 : 664,578.73 = 143,556.51 : x
  2. Step 2: Convert to fraction form
    443,145.45/664,578.73 = 143,556.51/x
  3. Step 3: Cross multiply
    443,145.45x = 664,578.73 × 143,556.51
  4. Step 4: Simplify right side
    443,145.45x = 95,404,603,099.03
  5. Step 5: Solve for x
    x = 95,404,603,099.03/443,145.45
  6. Step 6: Final answer
    x = 215,289.59

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Similar ratio
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1.5x scale

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.