Home / 213,516.91-320,288.58-71,374.97

Finding the Fourth Proportional to 213,516.91, 320,288.58 and 71,374.97

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Solution

The fourth proportional to 213,516.91, 320,288.58 and 71,374.97 is: 107,066.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,516.91 : 320,288.58 = 71,374.97 : x
  2. Step 2: Convert to fraction form
    213,516.91/320,288.58 = 71,374.97/x
  3. Step 3: Cross multiply
    213,516.91x = 320,288.58 × 71,374.97
  4. Step 4: Simplify right side
    213,516.91x = 22,860,588,589.56
  5. Step 5: Solve for x
    x = 22,860,588,589.56/213,516.91
  6. Step 6: Final answer
    x = 107,066.88

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1.5x scale

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.