Home / 386,819.02-533,815.14-217,049.50

Finding the Fourth Proportional to 386,819.02, 533,815.14 and 217,049.50

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Solution

The fourth proportional to 386,819.02, 533,815.14 and 217,049.50 is: 299,531.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,819.02 : 533,815.14 = 217,049.50 : x
  2. Step 2: Convert to fraction form
    386,819.02/533,815.14 = 217,049.50/x
  3. Step 3: Cross multiply
    386,819.02x = 533,815.14 × 217,049.50
  4. Step 4: Simplify right side
    386,819.02x = 115,864,309,229.43
  5. Step 5: Solve for x
    x = 115,864,309,229.43/386,819.02
  6. Step 6: Final answer
    x = 299,531.06

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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.