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Finding the Fourth Proportional to 339,366.37, 508,461.55 and 205,967.11

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Solution

The fourth proportional to 339,366.37, 508,461.55 and 205,967.11 is: 308,593.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,366.37 : 508,461.55 = 205,967.11 : x
  2. Step 2: Convert to fraction form
    339,366.37/508,461.55 = 205,967.11/x
  3. Step 3: Cross multiply
    339,366.37x = 508,461.55 × 205,967.11
  4. Step 4: Simplify right side
    339,366.37x = 104,726,355,999.62
  5. Step 5: Solve for x
    x = 104,726,355,999.62/339,366.37
  6. Step 6: Final answer
    x = 308,593.79

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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.