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Finding the Fourth Proportional to 306,304.80, 422,695.89 and 170,333.52

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Solution

The fourth proportional to 306,304.80, 422,695.89 and 170,333.52 is: 235,057.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,304.80 : 422,695.89 = 170,333.52 : x
  2. Step 2: Convert to fraction form
    306,304.80/422,695.89 = 170,333.52/x
  3. Step 3: Cross multiply
    306,304.80x = 422,695.89 × 170,333.52
  4. Step 4: Simplify right side
    306,304.80x = 71,999,278,833.23
  5. Step 5: Solve for x
    x = 71,999,278,833.23/306,304.80
  6. Step 6: Final answer
    x = 235,057.63

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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.