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Finding the Fourth Proportional to 247,940.96, 342,159 and 134,763.44

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Solution

The fourth proportional to 247,940.96, 342,159 and 134,763.44 is: 185,973.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,940.96 : 342,159 = 134,763.44 : x
  2. Step 2: Convert to fraction form
    247,940.96/342,159 = 134,763.44/x
  3. Step 3: Cross multiply
    247,940.96x = 342,159 × 134,763.44
  4. Step 4: Simplify right side
    247,940.96x = 46,110,523,866.96
  5. Step 5: Solve for x
    x = 46,110,523,866.96/247,940.96
  6. Step 6: Final answer
    x = 185,973.81

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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.