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Finding the Fourth Proportional to 325,221.94, 487,830.17 and 254,204.31

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Solution

The fourth proportional to 325,221.94, 487,830.17 and 254,204.31 is: 381,304.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,221.94 : 487,830.17 = 254,204.31 : x
  2. Step 2: Convert to fraction form
    325,221.94/487,830.17 = 254,204.31/x
  3. Step 3: Cross multiply
    325,221.94x = 487,830.17 × 254,204.31
  4. Step 4: Simplify right side
    325,221.94x = 124,008,531,762.03
  5. Step 5: Solve for x
    x = 124,008,531,762.03/325,221.94
  6. Step 6: Final answer
    x = 381,304.32

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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.