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Finding the Fourth Proportional to 250,634.81, 345,876.80 and 135,913.37

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Solution

The fourth proportional to 250,634.81, 345,876.80 and 135,913.37 is: 187,560.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,634.81 : 345,876.80 = 135,913.37 : x
  2. Step 2: Convert to fraction form
    250,634.81/345,876.80 = 135,913.37/x
  3. Step 3: Cross multiply
    250,634.81x = 345,876.80 × 135,913.37
  4. Step 4: Simplify right side
    250,634.81x = 47,009,279,083.87
  5. Step 5: Solve for x
    x = 47,009,279,083.87/250,634.81
  6. Step 6: Final answer
    x = 187,560.86

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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.