Home / 381,973.70-572,542.05-192,131.30

Finding the Fourth Proportional to 381,973.70, 572,542.05 and 192,131.30

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Solution

The fourth proportional to 381,973.70, 572,542.05 and 192,131.30 is: 287,986.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,973.70 : 572,542.05 = 192,131.30 : x
  2. Step 2: Convert to fraction form
    381,973.70/572,542.05 = 192,131.30/x
  3. Step 3: Cross multiply
    381,973.70x = 572,542.05 × 192,131.30
  4. Step 4: Simplify right side
    381,973.70x = 110,003,248,371.17
  5. Step 5: Solve for x
    x = 110,003,248,371.17/381,973.70
  6. Step 6: Final answer
    x = 287,986.45

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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.