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Finding the Fourth Proportional to 342,863.05, 513,804.55 and 192,788.38

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Solution

The fourth proportional to 342,863.05, 513,804.55 and 192,788.38 is: 288,907.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,863.05 : 513,804.55 = 192,788.38 : x
  2. Step 2: Convert to fraction form
    342,863.05/513,804.55 = 192,788.38/x
  3. Step 3: Cross multiply
    342,863.05x = 513,804.55 × 192,788.38
  4. Step 4: Simplify right side
    342,863.05x = 99,055,546,721.14
  5. Step 5: Solve for x
    x = 99,055,546,721.14/342,863.05
  6. Step 6: Final answer
    x = 288,907.03

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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.