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Finding the Fourth Proportional to 251,772.39, 347,450.32 and 137,054.33

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Solution

The fourth proportional to 251,772.39, 347,450.32 and 137,054.33 is: 189,137.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,772.39 : 347,450.32 = 137,054.33 : x
  2. Step 2: Convert to fraction form
    251,772.39/347,450.32 = 137,054.33/x
  3. Step 3: Cross multiply
    251,772.39x = 347,450.32 × 137,054.33
  4. Step 4: Simplify right side
    251,772.39x = 47,619,570,815.89
  5. Step 5: Solve for x
    x = 47,619,570,815.89/251,772.39
  6. Step 6: Final answer
    x = 189,137.38

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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.