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Finding the Fourth Proportional to 352,432.86, 486,307.48 and 209,249.97

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Solution

The fourth proportional to 352,432.86, 486,307.48 and 209,249.97 is: 288,735.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,432.86 : 486,307.48 = 209,249.97 : x
  2. Step 2: Convert to fraction form
    352,432.86/486,307.48 = 209,249.97/x
  3. Step 3: Cross multiply
    352,432.86x = 486,307.48 × 209,249.97
  4. Step 4: Simplify right side
    352,432.86x = 101,759,825,600.78
  5. Step 5: Solve for x
    x = 101,759,825,600.78/352,432.86
  6. Step 6: Final answer
    x = 288,735.35

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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.