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Finding the Fourth Proportional to 303,645.06, 419,021.76 and 167,676.45

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Solution

The fourth proportional to 303,645.06, 419,021.76 and 167,676.45 is: 231,388.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,645.06 : 419,021.76 = 167,676.45 : x
  2. Step 2: Convert to fraction form
    303,645.06/419,021.76 = 167,676.45/x
  3. Step 3: Cross multiply
    303,645.06x = 419,021.76 × 167,676.45
  4. Step 4: Simplify right side
    303,645.06x = 70,260,081,189.55
  5. Step 5: Solve for x
    x = 70,260,081,189.55/303,645.06
  6. Step 6: Final answer
    x = 231,388.85

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1.5x scale

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.