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Finding the Fourth Proportional to 422,340.33, 633,505.40 and 169,616.28

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Solution

The fourth proportional to 422,340.33, 633,505.40 and 169,616.28 is: 254,422.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,340.33 : 633,505.40 = 169,616.28 : x
  2. Step 2: Convert to fraction form
    422,340.33/633,505.40 = 169,616.28/x
  3. Step 3: Cross multiply
    422,340.33x = 633,505.40 × 169,616.28
  4. Step 4: Simplify right side
    422,340.33x = 107,452,828,862.16
  5. Step 5: Solve for x
    x = 107,452,828,862.16/422,340.33
  6. Step 6: Final answer
    x = 254,422.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.