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Finding the Fourth Proportional to 299,750.52, 449,645.22 and 89,409.72

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Solution

The fourth proportional to 299,750.52, 449,645.22 and 89,409.72 is: 134,120.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,750.52 : 449,645.22 = 89,409.72 : x
  2. Step 2: Convert to fraction form
    299,750.52/449,645.22 = 89,409.72/x
  3. Step 3: Cross multiply
    299,750.52x = 449,645.22 × 89,409.72
  4. Step 4: Simplify right side
    299,750.52x = 40,202,653,219.54
  5. Step 5: Solve for x
    x = 40,202,653,219.54/299,750.52
  6. Step 6: Final answer
    x = 134,120.38

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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.