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Finding the Fourth Proportional to 352,339.16, 486,221.28 and 199,374.56

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Solution

The fourth proportional to 352,339.16, 486,221.28 and 199,374.56 is: 275,133.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,339.16 : 486,221.28 = 199,374.56 : x
  2. Step 2: Convert to fraction form
    352,339.16/486,221.28 = 199,374.56/x
  3. Step 3: Cross multiply
    352,339.16x = 486,221.28 × 199,374.56
  4. Step 4: Simplify right side
    352,339.16x = 96,940,151,331.53
  5. Step 5: Solve for x
    x = 96,940,151,331.53/352,339.16
  6. Step 6: Final answer
    x = 275,133.06

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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.