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Finding the Fourth Proportional to 300,039.70, 449,987.55 and 173,406.10

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Solution

The fourth proportional to 300,039.70, 449,987.55 and 173,406.10 is: 260,067.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,039.70 : 449,987.55 = 173,406.10 : x
  2. Step 2: Convert to fraction form
    300,039.70/449,987.55 = 173,406.10/x
  3. Step 3: Cross multiply
    300,039.70x = 449,987.55 × 173,406.10
  4. Step 4: Simplify right side
    300,039.70x = 78,030,586,094.06
  5. Step 5: Solve for x
    x = 78,030,586,094.06/300,039.70
  6. Step 6: Final answer
    x = 260,067.54

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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.