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Finding the Fourth Proportional to 385,636.26, 532,171.37 and 213,550.82

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Solution

The fourth proportional to 385,636.26, 532,171.37 and 213,550.82 is: 294,696.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,636.26 : 532,171.37 = 213,550.82 : x
  2. Step 2: Convert to fraction form
    385,636.26/532,171.37 = 213,550.82/x
  3. Step 3: Cross multiply
    385,636.26x = 532,171.37 × 213,550.82
  4. Step 4: Simplify right side
    385,636.26x = 113,645,628,715.41
  5. Step 5: Solve for x
    x = 113,645,628,715.41/385,636.26
  6. Step 6: Final answer
    x = 294,696.43

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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.