Home / 211,939.30-317,908.13-54,167.50

Finding the Fourth Proportional to 211,939.30, 317,908.13 and 54,167.50

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Solution

The fourth proportional to 211,939.30, 317,908.13 and 54,167.50 is: 81,251.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,939.30 : 317,908.13 = 54,167.50 : x
  2. Step 2: Convert to fraction form
    211,939.30/317,908.13 = 54,167.50/x
  3. Step 3: Cross multiply
    211,939.30x = 317,908.13 × 54,167.50
  4. Step 4: Simplify right side
    211,939.30x = 17,220,287,042.23
  5. Step 5: Solve for x
    x = 17,220,287,042.23/211,939.30
  6. Step 6: Final answer
    x = 81,251.03

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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.