Home / 431,452.23-647,037.48-143,186.43

Finding the Fourth Proportional to 431,452.23, 647,037.48 and 143,186.43

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Solution

The fourth proportional to 431,452.23, 647,037.48 and 143,186.43 is: 214,732.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,452.23 : 647,037.48 = 143,186.43 : x
  2. Step 2: Convert to fraction form
    431,452.23/647,037.48 = 143,186.43/x
  3. Step 3: Cross multiply
    431,452.23x = 647,037.48 × 143,186.43
  4. Step 4: Simplify right side
    431,452.23x = 92,646,989,800.74
  5. Step 5: Solve for x
    x = 92,646,989,800.74/431,452.23
  6. Step 6: Final answer
    x = 214,732.90

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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.