Home / 352,910.32-486,819.12-216,849.76

Finding the Fourth Proportional to 352,910.32, 486,819.12 and 216,849.76

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Solution

The fourth proportional to 352,910.32, 486,819.12 and 216,849.76 is: 299,131.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,910.32 : 486,819.12 = 216,849.76 : x
  2. Step 2: Convert to fraction form
    352,910.32/486,819.12 = 216,849.76/x
  3. Step 3: Cross multiply
    352,910.32x = 486,819.12 × 216,849.76
  4. Step 4: Simplify right side
    352,910.32x = 105,566,609,335.41
  5. Step 5: Solve for x
    x = 105,566,609,335.41/352,910.32
  6. Step 6: Final answer
    x = 299,131.55

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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.