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Finding the Fourth Proportional to 309,263.52, 426,743.82 and 181,892.64

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Solution

The fourth proportional to 309,263.52, 426,743.82 and 181,892.64 is: 250,988.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,263.52 : 426,743.82 = 181,892.64 : x
  2. Step 2: Convert to fraction form
    309,263.52/426,743.82 = 181,892.64/x
  3. Step 3: Cross multiply
    309,263.52x = 426,743.82 × 181,892.64
  4. Step 4: Simplify right side
    309,263.52x = 77,621,560,023.48
  5. Step 5: Solve for x
    x = 77,621,560,023.48/309,263.52
  6. Step 6: Final answer
    x = 250,988.41

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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.