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Finding the Fourth Proportional to 300,742.72, 415,024.84 and 179,912.39

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Solution

The fourth proportional to 300,742.72, 415,024.84 and 179,912.39 is: 248,279.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,742.72 : 415,024.84 = 179,912.39 : x
  2. Step 2: Convert to fraction form
    300,742.72/415,024.84 = 179,912.39/x
  3. Step 3: Cross multiply
    300,742.72x = 415,024.84 × 179,912.39
  4. Step 4: Simplify right side
    300,742.72x = 74,668,110,852.05
  5. Step 5: Solve for x
    x = 74,668,110,852.05/300,742.72
  6. Step 6: Final answer
    x = 248,279.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.