Home / 299,836.08-413,821.44-172,486.80

Finding the Fourth Proportional to 299,836.08, 413,821.44 and 172,486.80

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Solution

The fourth proportional to 299,836.08, 413,821.44 and 172,486.80 is: 238,059.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,836.08 : 413,821.44 = 172,486.80 : x
  2. Step 2: Convert to fraction form
    299,836.08/413,821.44 = 172,486.80/x
  3. Step 3: Cross multiply
    299,836.08x = 413,821.44 × 172,486.80
  4. Step 4: Simplify right side
    299,836.08x = 71,378,735,956.99
  5. Step 5: Solve for x
    x = 71,378,735,956.99/299,836.08
  6. Step 6: Final answer
    x = 238,059.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.