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Finding the Fourth Proportional to 251,155.86, 376,724.04 and 84,943.86

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Solution

The fourth proportional to 251,155.86, 376,724.04 and 84,943.86 is: 127,412.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,155.86 : 376,724.04 = 84,943.86 : x
  2. Step 2: Convert to fraction form
    251,155.86/376,724.04 = 84,943.86/x
  3. Step 3: Cross multiply
    251,155.86x = 376,724.04 × 84,943.86
  4. Step 4: Simplify right side
    251,155.86x = 32,000,394,112.39
  5. Step 5: Solve for x
    x = 32,000,394,112.39/251,155.86
  6. Step 6: Final answer
    x = 127,412.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.