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Finding the Fourth Proportional to 386,369.45, 532,726.49 and 250,353.77

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Solution

The fourth proportional to 386,369.45, 532,726.49 and 250,353.77 is: 345,187.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,369.45 : 532,726.49 = 250,353.77 : x
  2. Step 2: Convert to fraction form
    386,369.45/532,726.49 = 250,353.77/x
  3. Step 3: Cross multiply
    386,369.45x = 532,726.49 × 250,353.77
  4. Step 4: Simplify right side
    386,369.45x = 133,370,083,112.62
  5. Step 5: Solve for x
    x = 133,370,083,112.62/386,369.45
  6. Step 6: Final answer
    x = 345,187.96

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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.