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Finding the Fourth Proportional to 308,664, 426,010.86 and 181,339.56

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Solution

The fourth proportional to 308,664, 426,010.86 and 181,339.56 is: 250,280.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,664 : 426,010.86 = 181,339.56 : x
  2. Step 2: Convert to fraction form
    308,664/426,010.86 = 181,339.56/x
  3. Step 3: Cross multiply
    308,664x = 426,010.86 × 181,339.56
  4. Step 4: Simplify right side
    308,664x = 77,252,621,907.62
  5. Step 5: Solve for x
    x = 77,252,621,907.62/308,664
  6. Step 6: Final answer
    x = 250,280.63

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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.