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Finding the Fourth Proportional to 345,562.27, 519,924.53 and 205,425.79

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Solution

The fourth proportional to 345,562.27, 519,924.53 and 205,425.79 is: 309,078.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,562.27 : 519,924.53 = 205,425.79 : x
  2. Step 2: Convert to fraction form
    345,562.27/519,924.53 = 205,425.79/x
  3. Step 3: Cross multiply
    345,562.27x = 519,924.53 × 205,425.79
  4. Step 4: Simplify right side
    345,562.27x = 106,805,906,288.50
  5. Step 5: Solve for x
    x = 106,805,906,288.50/345,562.27
  6. Step 6: Final answer
    x = 309,078.61

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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.