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Finding the Fourth Proportional to 247,355.83, 341,351.16 and 139,923.61

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Solution

The fourth proportional to 247,355.83, 341,351.16 and 139,923.61 is: 193,094.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,355.83 : 341,351.16 = 139,923.61 : x
  2. Step 2: Convert to fraction form
    247,355.83/341,351.16 = 139,923.61/x
  3. Step 3: Cross multiply
    247,355.83x = 341,351.16 × 139,923.61
  4. Step 4: Simplify right side
    247,355.83x = 47,763,086,584.89
  5. Step 5: Solve for x
    x = 47,763,086,584.89/247,355.83
  6. Step 6: Final answer
    x = 193,094.65

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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.