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Finding the Fourth Proportional to 352,433.86, 486,308.86 and 209,250.97

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Solution

The fourth proportional to 352,433.86, 486,308.86 and 209,250.97 is: 288,736.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,433.86 : 486,308.86 = 209,250.97 : x
  2. Step 2: Convert to fraction form
    352,433.86/486,308.86 = 209,250.97/x
  3. Step 3: Cross multiply
    352,433.86x = 486,308.86 × 209,250.97
  4. Step 4: Simplify right side
    352,433.86x = 101,760,600,674.59
  5. Step 5: Solve for x
    x = 101,760,600,674.59/352,433.86
  6. Step 6: Final answer
    x = 288,736.73

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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.