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Finding the Fourth Proportional to 305,908.52, 422,153.37 and 169,955.01

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Solution

The fourth proportional to 305,908.52, 422,153.37 and 169,955.01 is: 234,537.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,908.52 : 422,153.37 = 169,955.01 : x
  2. Step 2: Convert to fraction form
    305,908.52/422,153.37 = 169,955.01/x
  3. Step 3: Cross multiply
    305,908.52x = 422,153.37 × 169,955.01
  4. Step 4: Simplify right side
    305,908.52x = 71,747,080,219.88
  5. Step 5: Solve for x
    x = 71,747,080,219.88/305,908.52
  6. Step 6: Final answer
    x = 234,537.70

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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.