Home / 354,245.91-531,271.59-211,979.26

Finding the Fourth Proportional to 354,245.91, 531,271.59 and 211,979.26

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Solution

The fourth proportional to 354,245.91, 531,271.59 and 211,979.26 is: 317,910.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,245.91 : 531,271.59 = 211,979.26 : x
  2. Step 2: Convert to fraction form
    354,245.91/531,271.59 = 211,979.26/x
  3. Step 3: Cross multiply
    354,245.91x = 531,271.59 × 211,979.26
  4. Step 4: Simplify right side
    354,245.91x = 112,618,558,507.22
  5. Step 5: Solve for x
    x = 112,618,558,507.22/354,245.91
  6. Step 6: Final answer
    x = 317,910.68

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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.