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Finding the Fourth Proportional to 381,051.54, 571,118.85 and 140,974.02

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Solution

The fourth proportional to 381,051.54, 571,118.85 and 140,974.02 is: 211,291.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,051.54 : 571,118.85 = 140,974.02 : x
  2. Step 2: Convert to fraction form
    381,051.54/571,118.85 = 140,974.02/x
  3. Step 3: Cross multiply
    381,051.54x = 571,118.85 × 140,974.02
  4. Step 4: Simplify right side
    381,051.54x = 80,512,920,182.28
  5. Step 5: Solve for x
    x = 80,512,920,182.28/381,051.54
  6. Step 6: Final answer
    x = 211,291.42

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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.