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Finding the Fourth Proportional to 299,763.36, 449,513.28 and 159,488.64

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Solution

The fourth proportional to 299,763.36, 449,513.28 and 159,488.64 is: 239,162.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,763.36 : 449,513.28 = 159,488.64 : x
  2. Step 2: Convert to fraction form
    299,763.36/449,513.28 = 159,488.64/x
  3. Step 3: Cross multiply
    299,763.36x = 449,513.28 × 159,488.64
  4. Step 4: Simplify right side
    299,763.36x = 71,692,261,689.14
  5. Step 5: Solve for x
    x = 71,692,261,689.14/299,763.36
  6. Step 6: Final answer
    x = 239,162.86

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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.