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Finding the Fourth Proportional to 251,951.40, 347,696.73 and 137,235.33

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Solution

The fourth proportional to 251,951.40, 347,696.73 and 137,235.33 is: 189,386.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,951.40 : 347,696.73 = 137,235.33 : x
  2. Step 2: Convert to fraction form
    251,951.40/347,696.73 = 137,235.33/x
  3. Step 3: Cross multiply
    251,951.40x = 347,696.73 × 137,235.33
  4. Step 4: Simplify right side
    251,951.40x = 47,716,275,481.47
  5. Step 5: Solve for x
    x = 47,716,275,481.47/251,951.40
  6. Step 6: Final answer
    x = 189,386.82

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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.