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Finding the Fourth Proportional to 326,935.44, 490,054.36 and 186,391.44

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Solution

The fourth proportional to 326,935.44, 490,054.36 and 186,391.44 is: 279,388.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,935.44 : 490,054.36 = 186,391.44 : x
  2. Step 2: Convert to fraction form
    326,935.44/490,054.36 = 186,391.44/x
  3. Step 3: Cross multiply
    326,935.44x = 490,054.36 × 186,391.44
  4. Step 4: Simplify right side
    326,935.44x = 91,341,937,838.68
  5. Step 5: Solve for x
    x = 91,341,937,838.68/326,935.44
  6. Step 6: Final answer
    x = 279,388.30

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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.