Home / 443,266.68-664,993.43-143,723.90

Finding the Fourth Proportional to 443,266.68, 664,993.43 and 143,723.90

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Solution

The fourth proportional to 443,266.68, 664,993.43 and 143,723.90 is: 215,616.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,266.68 : 664,993.43 = 143,723.90 : x
  2. Step 2: Convert to fraction form
    443,266.68/664,993.43 = 143,723.90/x
  3. Step 3: Cross multiply
    443,266.68x = 664,993.43 × 143,723.90
  4. Step 4: Simplify right side
    443,266.68x = 95,575,447,684.12
  5. Step 5: Solve for x
    x = 95,575,447,684.12/443,266.68
  6. Step 6: Final answer
    x = 215,616.14

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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.