Home / 275,799.78-380,272.55-199,196.46

Finding the Fourth Proportional to 275,799.78, 380,272.55 and 199,196.46

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Solution

The fourth proportional to 275,799.78, 380,272.55 and 199,196.46 is: 274,651.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,799.78 : 380,272.55 = 199,196.46 : x
  2. Step 2: Convert to fraction form
    275,799.78/380,272.55 = 199,196.46/x
  3. Step 3: Cross multiply
    275,799.78x = 380,272.55 × 199,196.46
  4. Step 4: Simplify right side
    275,799.78x = 75,748,944,799.19
  5. Step 5: Solve for x
    x = 75,748,944,799.19/275,799.78
  6. Step 6: Final answer
    x = 274,651.94

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1.5x scale

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.