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Finding the Fourth Proportional to 395,665.92, 546,042.04 and 223,579.50

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Solution

The fourth proportional to 395,665.92, 546,042.04 and 223,579.50 is: 308,552.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,665.92 : 546,042.04 = 223,579.50 : x
  2. Step 2: Convert to fraction form
    395,665.92/546,042.04 = 223,579.50/x
  3. Step 3: Cross multiply
    395,665.92x = 546,042.04 × 223,579.50
  4. Step 4: Simplify right side
    395,665.92x = 122,083,806,282.18
  5. Step 5: Solve for x
    x = 122,083,806,282.18/395,665.92
  6. Step 6: Final answer
    x = 308,552.75

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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.