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Finding the Fourth Proportional to 247,362.74, 341,360.69 and 139,930.49

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Solution

The fourth proportional to 247,362.74, 341,360.69 and 139,930.49 is: 193,104.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,362.74 : 341,360.69 = 139,930.49 : x
  2. Step 2: Convert to fraction form
    247,362.74/341,360.69 = 139,930.49/x
  3. Step 3: Cross multiply
    247,362.74x = 341,360.69 × 139,930.49
  4. Step 4: Simplify right side
    247,362.74x = 47,766,766,211.98
  5. Step 5: Solve for x
    x = 47,766,766,211.98/247,362.74
  6. Step 6: Final answer
    x = 193,104.13

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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.