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Finding the Fourth Proportional to 247,842.87, 342,025.25 and 134,665.62

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Solution

The fourth proportional to 247,842.87, 342,025.25 and 134,665.62 is: 185,839.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,842.87 : 342,025.25 = 134,665.62 : x
  2. Step 2: Convert to fraction form
    247,842.87/342,025.25 = 134,665.62/x
  3. Step 3: Cross multiply
    247,842.87x = 342,025.25 × 134,665.62
  4. Step 4: Simplify right side
    247,842.87x = 46,059,041,673.58
  5. Step 5: Solve for x
    x = 46,059,041,673.58/247,842.87
  6. Step 6: Final answer
    x = 185,839.69

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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.