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Finding the Fourth Proportional to 352,910, 487,015.80 and 193,934

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Solution

The fourth proportional to 352,910, 487,015.80 and 193,934 is: 267,628.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,910 : 487,015.80 = 193,934 : x
  2. Step 2: Convert to fraction form
    352,910/487,015.80 = 193,934/x
  3. Step 3: Cross multiply
    352,910x = 487,015.80 × 193,934
  4. Step 4: Simplify right side
    352,910x = 94,448,922,157.20
  5. Step 5: Solve for x
    x = 94,448,922,157.20/352,910
  6. Step 6: Final answer
    x = 267,628.92

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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.