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Finding the Fourth Proportional to 299,720.15, 449,288.02 and 119,751.92

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Solution

The fourth proportional to 299,720.15, 449,288.02 and 119,751.92 is: 179,511.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,720.15 : 449,288.02 = 119,751.92 : x
  2. Step 2: Convert to fraction form
    299,720.15/449,288.02 = 119,751.92/x
  3. Step 3: Cross multiply
    299,720.15x = 449,288.02 × 119,751.92
  4. Step 4: Simplify right side
    299,720.15x = 53,803,101,942.47
  5. Step 5: Solve for x
    x = 53,803,101,942.47/299,720.15
  6. Step 6: Final answer
    x = 179,511.13

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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.