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Finding the Fourth Proportional to 298,911.43, 412,645.04 and 207,100.33

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Solution

The fourth proportional to 298,911.43, 412,645.04 and 207,100.33 is: 285,900.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,911.43 : 412,645.04 = 207,100.33 : x
  2. Step 2: Convert to fraction form
    298,911.43/412,645.04 = 207,100.33/x
  3. Step 3: Cross multiply
    298,911.43x = 412,645.04 × 207,100.33
  4. Step 4: Simplify right side
    298,911.43x = 85,458,921,762.26
  5. Step 5: Solve for x
    x = 85,458,921,762.26/298,911.43
  6. Step 6: Final answer
    x = 285,900.48

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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.