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Finding the Fourth Proportional to 442,137.80, 610,119.60 and 248,550.50

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Solution

The fourth proportional to 442,137.80, 610,119.60 and 248,550.50 is: 342,982.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,137.80 : 610,119.60 = 248,550.50 : x
  2. Step 2: Convert to fraction form
    442,137.80/610,119.60 = 248,550.50/x
  3. Step 3: Cross multiply
    442,137.80x = 610,119.60 × 248,550.50
  4. Step 4: Simplify right side
    442,137.80x = 151,645,531,639.80
  5. Step 5: Solve for x
    x = 151,645,531,639.80/442,137.80
  6. Step 6: Final answer
    x = 342,982.51

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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.