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Finding the Fourth Proportional to 442,072.26, 610,051.50 and 245,850.78

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Solution

The fourth proportional to 442,072.26, 610,051.50 and 245,850.78 is: 339,269.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,072.26 : 610,051.50 = 245,850.78 : x
  2. Step 2: Convert to fraction form
    442,072.26/610,051.50 = 245,850.78/x
  3. Step 3: Cross multiply
    442,072.26x = 610,051.50 × 245,850.78
  4. Step 4: Simplify right side
    442,072.26x = 149,981,637,115.17
  5. Step 5: Solve for x
    x = 149,981,637,115.17/442,072.26
  6. Step 6: Final answer
    x = 339,269.51

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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.