Home / 381,051.42-571,577.28-141,247.78

Finding the Fourth Proportional to 381,051.42, 571,577.28 and 141,247.78

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Solution

The fourth proportional to 381,051.42, 571,577.28 and 141,247.78 is: 211,871.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,051.42 : 571,577.28 = 141,247.78 : x
  2. Step 2: Convert to fraction form
    381,051.42/571,577.28 = 141,247.78/x
  3. Step 3: Cross multiply
    381,051.42x = 571,577.28 × 141,247.78
  4. Step 4: Simplify right side
    381,051.42x = 80,734,021,898.44
  5. Step 5: Solve for x
    x = 80,734,021,898.44/381,051.42
  6. Step 6: Final answer
    x = 211,871.73

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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.