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Finding the Fourth Proportional to 508,960.28, 763,126.94 and 171,969.09

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Solution

The fourth proportional to 508,960.28, 763,126.94 and 171,969.09 is: 257,847.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,960.28 : 763,126.94 = 171,969.09 : x
  2. Step 2: Convert to fraction form
    508,960.28/763,126.94 = 171,969.09/x
  3. Step 3: Cross multiply
    508,960.28x = 763,126.94 × 171,969.09
  4. Step 4: Simplify right side
    508,960.28x = 131,234,245,426.29
  5. Step 5: Solve for x
    x = 131,234,245,426.29/508,960.28
  6. Step 6: Final answer
    x = 257,847.72

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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.