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Finding the Fourth Proportional to 306,061.51, 422,364.51 and 170,091.16

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Solution

The fourth proportional to 306,061.51, 422,364.51 and 170,091.16 is: 234,725.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,061.51 : 422,364.51 = 170,091.16 : x
  2. Step 2: Convert to fraction form
    306,061.51/422,364.51 = 170,091.16/x
  3. Step 3: Cross multiply
    306,061.51x = 422,364.51 × 170,091.16
  4. Step 4: Simplify right side
    306,061.51x = 71,840,469,448.73
  5. Step 5: Solve for x
    x = 71,840,469,448.73/306,061.51
  6. Step 6: Final answer
    x = 234,725.59

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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.