Home / 371,946.72-513,310.32-208,618.56

Finding the Fourth Proportional to 371,946.72, 513,310.32 and 208,618.56

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Solution

The fourth proportional to 371,946.72, 513,310.32 and 208,618.56 is: 287,906.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,946.72 : 513,310.32 = 208,618.56 : x
  2. Step 2: Convert to fraction form
    371,946.72/513,310.32 = 208,618.56/x
  3. Step 3: Cross multiply
    371,946.72x = 513,310.32 × 208,618.56
  4. Step 4: Simplify right side
    371,946.72x = 107,086,059,791.54
  5. Step 5: Solve for x
    x = 107,086,059,791.54/371,946.72
  6. Step 6: Final answer
    x = 287,906.99

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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.