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Finding the Fourth Proportional to 395,910.34, 546,227.81 and 223,811.66

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Solution

The fourth proportional to 395,910.34, 546,227.81 and 223,811.66 is: 308,787.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,910.34 : 546,227.81 = 223,811.66 : x
  2. Step 2: Convert to fraction form
    395,910.34/546,227.81 = 223,811.66/x
  3. Step 3: Cross multiply
    395,910.34x = 546,227.81 × 223,811.66
  4. Step 4: Simplify right side
    395,910.34x = 122,252,152,894.27
  5. Step 5: Solve for x
    x = 122,252,152,894.27/395,910.34
  6. Step 6: Final answer
    x = 308,787.47

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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.