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Finding the Fourth Proportional to 251,696.44, 379,265.65 and 208,280.44

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Solution

The fourth proportional to 251,696.44, 379,265.65 and 208,280.44 is: 313,844.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,696.44 : 379,265.65 = 208,280.44 : x
  2. Step 2: Convert to fraction form
    251,696.44/379,265.65 = 208,280.44/x
  3. Step 3: Cross multiply
    251,696.44x = 379,265.65 × 208,280.44
  4. Step 4: Simplify right side
    251,696.44x = 78,993,616,458.89
  5. Step 5: Solve for x
    x = 78,993,616,458.89/251,696.44
  6. Step 6: Final answer
    x = 313,844.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.