Home / 215,037.10-322,446.30-126,317.80

Finding the Fourth Proportional to 215,037.10, 322,446.30 and 126,317.80

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Solution

The fourth proportional to 215,037.10, 322,446.30 and 126,317.80 is: 189,412.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,037.10 : 322,446.30 = 126,317.80 : x
  2. Step 2: Convert to fraction form
    215,037.10/322,446.30 = 126,317.80/x
  3. Step 3: Cross multiply
    215,037.10x = 322,446.30 × 126,317.80
  4. Step 4: Simplify right side
    215,037.10x = 40,730,707,234.14
  5. Step 5: Solve for x
    x = 40,730,707,234.14/215,037.10
  6. Step 6: Final answer
    x = 189,412.47

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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.