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Finding the Fourth Proportional to 305,879.09, 422,124.98 and 169,923.33

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Solution

The fourth proportional to 305,879.09, 422,124.98 and 169,923.33 is: 234,500.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,879.09 : 422,124.98 = 169,923.33 : x
  2. Step 2: Convert to fraction form
    305,879.09/422,124.98 = 169,923.33/x
  3. Step 3: Cross multiply
    305,879.09x = 422,124.98 × 169,923.33
  4. Step 4: Simplify right side
    305,879.09x = 71,728,881,428.17
  5. Step 5: Solve for x
    x = 71,728,881,428.17/305,879.09
  6. Step 6: Final answer
    x = 234,500.77

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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.