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Finding the Fourth Proportional to 253,876.63, 350,335.48 and 139,133.41

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Solution

The fourth proportional to 253,876.63, 350,335.48 and 139,133.41 is: 191,996.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,876.63 : 350,335.48 = 139,133.41 : x
  2. Step 2: Convert to fraction form
    253,876.63/350,335.48 = 139,133.41/x
  3. Step 3: Cross multiply
    253,876.63x = 350,335.48 × 139,133.41
  4. Step 4: Simplify right side
    253,876.63x = 48,743,369,976.39
  5. Step 5: Solve for x
    x = 48,743,369,976.39/253,876.63
  6. Step 6: Final answer
    x = 191,996.29

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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.