Home / 253,147.68-379,579.37-84,579.19

Finding the Fourth Proportional to 253,147.68, 379,579.37 and 84,579.19

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Solution

The fourth proportional to 253,147.68, 379,579.37 and 84,579.19 is: 126,821.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,147.68 : 379,579.37 = 84,579.19 : x
  2. Step 2: Convert to fraction form
    253,147.68/379,579.37 = 84,579.19/x
  3. Step 3: Cross multiply
    253,147.68x = 379,579.37 × 84,579.19
  4. Step 4: Simplify right side
    253,147.68x = 32,104,514,283.47
  5. Step 5: Solve for x
    x = 32,104,514,283.47/253,147.68
  6. Step 6: Final answer
    x = 126,821.29

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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.