Home / 371,555.25-512,748.86-201,789.37

Finding the Fourth Proportional to 371,555.25, 512,748.86 and 201,789.37

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Solution

The fourth proportional to 371,555.25, 512,748.86 and 201,789.37 is: 278,470.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,555.25 : 512,748.86 = 201,789.37 : x
  2. Step 2: Convert to fraction form
    371,555.25/512,748.86 = 201,789.37/x
  3. Step 3: Cross multiply
    371,555.25x = 512,748.86 × 201,789.37
  4. Step 4: Simplify right side
    371,555.25x = 103,467,269,427.62
  5. Step 5: Solve for x
    x = 103,467,269,427.62/371,555.25
  6. Step 6: Final answer
    x = 278,470.75

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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.