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Finding the Fourth Proportional to 306,348.83, 422,759.01 and 168,524.78

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Solution

The fourth proportional to 306,348.83, 422,759.01 and 168,524.78 is: 232,562.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,348.83 : 422,759.01 = 168,524.78 : x
  2. Step 2: Convert to fraction form
    306,348.83/422,759.01 = 168,524.78/x
  3. Step 3: Cross multiply
    306,348.83x = 422,759.01 × 168,524.78
  4. Step 4: Simplify right side
    306,348.83x = 71,245,367,039.47
  5. Step 5: Solve for x
    x = 71,245,367,039.47/306,348.83
  6. Step 6: Final answer
    x = 232,562.89

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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.