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Finding the Fourth Proportional to 305,927.55, 422,133.12 and 169,959.33

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Solution

The fourth proportional to 305,927.55, 422,133.12 and 169,959.33 is: 234,517.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,927.55 : 422,133.12 = 169,959.33 : x
  2. Step 2: Convert to fraction form
    305,927.55/422,133.12 = 169,959.33/x
  3. Step 3: Cross multiply
    305,927.55x = 422,133.12 × 169,959.33
  4. Step 4: Simplify right side
    305,927.55x = 71,745,462,246.01
  5. Step 5: Solve for x
    x = 71,745,462,246.01/305,927.55
  6. Step 6: Final answer
    x = 234,517.82

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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.