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Finding the Fourth Proportional to 326,784.63, 490,596.73 and 251,952.31

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Solution

The fourth proportional to 326,784.63, 490,596.73 and 251,952.31 is: 378,252.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,784.63 : 490,596.73 = 251,952.31 : x
  2. Step 2: Convert to fraction form
    326,784.63/490,596.73 = 251,952.31/x
  3. Step 3: Cross multiply
    326,784.63x = 490,596.73 × 251,952.31
  4. Step 4: Simplify right side
    326,784.63x = 123,606,979,401.95
  5. Step 5: Solve for x
    x = 123,606,979,401.95/326,784.63
  6. Step 6: Final answer
    x = 378,252.12

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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.