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Finding the Fourth Proportional to 247,203.87, 341,148.05 and 139,789.97

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Solution

The fourth proportional to 247,203.87, 341,148.05 and 139,789.97 is: 192,913.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,203.87 : 341,148.05 = 139,789.97 : x
  2. Step 2: Convert to fraction form
    247,203.87/341,148.05 = 139,789.97/x
  3. Step 3: Cross multiply
    247,203.87x = 341,148.05 × 139,789.97
  4. Step 4: Simplify right side
    247,203.87x = 47,689,075,860.20
  5. Step 5: Solve for x
    x = 47,689,075,860.20/247,203.87
  6. Step 6: Final answer
    x = 192,913.96

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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.