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Finding the Fourth Proportional to 247,289.58, 341,255.58 and 139,855.58

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Solution

The fourth proportional to 247,289.58, 341,255.58 and 139,855.58 is: 192,998.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,289.58 : 341,255.58 = 139,855.58 : x
  2. Step 2: Convert to fraction form
    247,289.58/341,255.58 = 139,855.58/x
  3. Step 3: Cross multiply
    247,289.58x = 341,255.58 × 139,855.58
  4. Step 4: Simplify right side
    247,289.58x = 47,726,497,069.14
  5. Step 5: Solve for x
    x = 47,726,497,069.14/247,289.58
  6. Step 6: Final answer
    x = 192,998.42

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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.