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Finding the Fourth Proportional to 202,801.73, 303,564.78 and 139,249.94

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Solution

The fourth proportional to 202,801.73, 303,564.78 and 139,249.94 is: 208,436.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,801.73 : 303,564.78 = 139,249.94 : x
  2. Step 2: Convert to fraction form
    202,801.73/303,564.78 = 139,249.94/x
  3. Step 3: Cross multiply
    202,801.73x = 303,564.78 × 139,249.94
  4. Step 4: Simplify right side
    202,801.73x = 42,271,375,883.29
  5. Step 5: Solve for x
    x = 42,271,375,883.29/202,801.73
  6. Step 6: Final answer
    x = 208,436.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.