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Finding the Fourth Proportional to 352,410.38, 486,331 and 191,267.36

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Solution

The fourth proportional to 352,410.38, 486,331 and 191,267.36 is: 263,951.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,410.38 : 486,331 = 191,267.36 : x
  2. Step 2: Convert to fraction form
    352,410.38/486,331 = 191,267.36/x
  3. Step 3: Cross multiply
    352,410.38x = 486,331 × 191,267.36
  4. Step 4: Simplify right side
    352,410.38x = 93,019,246,456.16
  5. Step 5: Solve for x
    x = 93,019,246,456.16/352,410.38
  6. Step 6: Final answer
    x = 263,951.49

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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.