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Finding the Fourth Proportional to 395,664.92, 546,040.66 and 223,578.50

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Solution

The fourth proportional to 395,664.92, 546,040.66 and 223,578.50 is: 308,551.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,664.92 : 546,040.66 = 223,578.50 : x
  2. Step 2: Convert to fraction form
    395,664.92/546,040.66 = 223,578.50/x
  3. Step 3: Cross multiply
    395,664.92x = 546,040.66 × 223,578.50
  4. Step 4: Simplify right side
    395,664.92x = 122,082,951,701.81
  5. Step 5: Solve for x
    x = 122,082,951,701.81/395,664.92
  6. Step 6: Final answer
    x = 308,551.37

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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.