Home / 447,451.40-671,240.14-143,743.72

Finding the Fourth Proportional to 447,451.40, 671,240.14 and 143,743.72

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Solution

The fourth proportional to 447,451.40, 671,240.14 and 143,743.72 is: 215,635.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,451.40 : 671,240.14 = 143,743.72 : x
  2. Step 2: Convert to fraction form
    447,451.40/671,240.14 = 143,743.72/x
  3. Step 3: Cross multiply
    447,451.40x = 671,240.14 × 143,743.72
  4. Step 4: Simplify right side
    447,451.40x = 96,486,552,249.44
  5. Step 5: Solve for x
    x = 96,486,552,249.44/447,451.40
  6. Step 6: Final answer
    x = 215,635.82

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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.