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Finding the Fourth Proportional to 305,937.54, 422,191.04 and 169,971.75

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Solution

The fourth proportional to 305,937.54, 422,191.04 and 169,971.75 is: 234,559.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,937.54 : 422,191.04 = 169,971.75 : x
  2. Step 2: Convert to fraction form
    305,937.54/422,191.04 = 169,971.75/x
  3. Step 3: Cross multiply
    305,937.54x = 422,191.04 × 169,971.75
  4. Step 4: Simplify right side
    305,937.54x = 71,760,549,053.26
  5. Step 5: Solve for x
    x = 71,760,549,053.26/305,937.54
  6. Step 6: Final answer
    x = 234,559.48

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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.