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Finding the Fourth Proportional to 247,116, 341,025.32 and 139,679.62

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Solution

The fourth proportional to 247,116, 341,025.32 and 139,679.62 is: 192,760.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,116 : 341,025.32 = 139,679.62 : x
  2. Step 2: Convert to fraction form
    247,116/341,025.32 = 139,679.62/x
  3. Step 3: Cross multiply
    247,116x = 341,025.32 × 139,679.62
  4. Step 4: Simplify right side
    247,116x = 47,634,287,107.98
  5. Step 5: Solve for x
    x = 47,634,287,107.98/247,116
  6. Step 6: Final answer
    x = 192,760.84

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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.