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Finding the Fourth Proportional to 305,880.09, 422,126.36 and 169,924.33

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Solution

The fourth proportional to 305,880.09, 422,126.36 and 169,924.33 is: 234,502.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,880.09 : 422,126.36 = 169,924.33 : x
  2. Step 2: Convert to fraction form
    305,880.09/422,126.36 = 169,924.33/x
  3. Step 3: Cross multiply
    305,880.09x = 422,126.36 × 169,924.33
  4. Step 4: Simplify right side
    305,880.09x = 71,729,538,898.34
  5. Step 5: Solve for x
    x = 71,729,538,898.34/305,880.09
  6. Step 6: Final answer
    x = 234,502.15

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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.