Home / 381,616.28-572,436.56-191,973

Finding the Fourth Proportional to 381,616.28, 572,436.56 and 191,973

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Solution

The fourth proportional to 381,616.28, 572,436.56 and 191,973 is: 287,965.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,616.28 : 572,436.56 = 191,973 : x
  2. Step 2: Convert to fraction form
    381,616.28/572,436.56 = 191,973/x
  3. Step 3: Cross multiply
    381,616.28x = 572,436.56 × 191,973
  4. Step 4: Simplify right side
    381,616.28x = 109,892,363,732.88
  5. Step 5: Solve for x
    x = 109,892,363,732.88/381,616.28
  6. Step 6: Final answer
    x = 287,965.61

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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.