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Finding the Fourth Proportional to 298,040.80, 445,894.80 and 193,064.80

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Solution

The fourth proportional to 298,040.80, 445,894.80 and 193,064.80 is: 288,841.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,040.80 : 445,894.80 = 193,064.80 : x
  2. Step 2: Convert to fraction form
    298,040.80/445,894.80 = 193,064.80/x
  3. Step 3: Cross multiply
    298,040.80x = 445,894.80 × 193,064.80
  4. Step 4: Simplify right side
    298,040.80x = 86,086,590,383.04
  5. Step 5: Solve for x
    x = 86,086,590,383.04/298,040.80
  6. Step 6: Final answer
    x = 288,841.63

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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.