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Finding the Fourth Proportional to 247,147.74, 341,069.13 and 139,711.37

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Solution

The fourth proportional to 247,147.74, 341,069.13 and 139,711.37 is: 192,804.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,147.74 : 341,069.13 = 139,711.37 : x
  2. Step 2: Convert to fraction form
    247,147.74/341,069.13 = 139,711.37/x
  3. Step 3: Cross multiply
    247,147.74x = 341,069.13 × 139,711.37
  4. Step 4: Simplify right side
    247,147.74x = 47,651,233,711.66
  5. Step 5: Solve for x
    x = 47,651,233,711.66/247,147.74
  6. Step 6: Final answer
    x = 192,804.65

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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.