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Finding the Fourth Proportional to 352,334.22, 486,216 and 207,156.36

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Solution

The fourth proportional to 352,334.22, 486,216 and 207,156.36 is: 285,872.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,334.22 : 486,216 = 207,156.36 : x
  2. Step 2: Convert to fraction form
    352,334.22/486,216 = 207,156.36/x
  3. Step 3: Cross multiply
    352,334.22x = 486,216 × 207,156.36
  4. Step 4: Simplify right side
    352,334.22x = 100,722,736,733.76
  5. Step 5: Solve for x
    x = 100,722,736,733.76/352,334.22
  6. Step 6: Final answer
    x = 285,872.71

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1.5x scale

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.