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Finding the Fourth Proportional to 307,224.88, 423,979.32 and 179,888.56

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Solution

The fourth proportional to 307,224.88, 423,979.32 and 179,888.56 is: 248,251.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,224.88 : 423,979.32 = 179,888.56 : x
  2. Step 2: Convert to fraction form
    307,224.88/423,979.32 = 179,888.56/x
  3. Step 3: Cross multiply
    307,224.88x = 423,979.32 × 179,888.56
  4. Step 4: Simplify right side
    307,224.88x = 76,269,029,344.58
  5. Step 5: Solve for x
    x = 76,269,029,344.58/307,224.88
  6. Step 6: Final answer
    x = 248,251.47

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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.