Home / 298,716.10-412,231.86-171,403.54

Finding the Fourth Proportional to 298,716.10, 412,231.86 and 171,403.54

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Solution

The fourth proportional to 298,716.10, 412,231.86 and 171,403.54 is: 236,538.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,716.10 : 412,231.86 = 171,403.54 : x
  2. Step 2: Convert to fraction form
    298,716.10/412,231.86 = 171,403.54/x
  3. Step 3: Cross multiply
    298,716.10x = 412,231.86 × 171,403.54
  4. Step 4: Simplify right side
    298,716.10x = 70,658,000,104.78
  5. Step 5: Solve for x
    x = 70,658,000,104.78/298,716.10
  6. Step 6: Final answer
    x = 236,538.97

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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.