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Finding the Fourth Proportional to 381,277.72, 572,091.54 and 194,420.44

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Solution

The fourth proportional to 381,277.72, 572,091.54 and 194,420.44 is: 291,719.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,277.72 : 572,091.54 = 194,420.44 : x
  2. Step 2: Convert to fraction form
    381,277.72/572,091.54 = 194,420.44/x
  3. Step 3: Cross multiply
    381,277.72x = 572,091.54 × 194,420.44
  4. Step 4: Simplify right side
    381,277.72x = 111,226,288,927.08
  5. Step 5: Solve for x
    x = 111,226,288,927.08/381,277.72
  6. Step 6: Final answer
    x = 291,719.88

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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.