Home / 447,453.40-671,243.14-143,745.72

Finding the Fourth Proportional to 447,453.40, 671,243.14 and 143,745.72

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Solution

The fourth proportional to 447,453.40, 671,243.14 and 143,745.72 is: 215,638.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,453.40 : 671,243.14 = 143,745.72 : x
  2. Step 2: Convert to fraction form
    447,453.40/671,243.14 = 143,745.72/x
  3. Step 3: Cross multiply
    447,453.40x = 671,243.14 × 143,745.72
  4. Step 4: Simplify right side
    447,453.40x = 96,488,328,454.36
  5. Step 5: Solve for x
    x = 96,488,328,454.36/447,453.40
  6. Step 6: Final answer
    x = 215,638.83

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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.