Home / 274,164.45-378,442.22-188,407.40

Finding the Fourth Proportional to 274,164.45, 378,442.22 and 188,407.40

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Solution

The fourth proportional to 274,164.45, 378,442.22 and 188,407.40 is: 260,067.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,164.45 : 378,442.22 = 188,407.40 : x
  2. Step 2: Convert to fraction form
    274,164.45/378,442.22 = 188,407.40/x
  3. Step 3: Cross multiply
    274,164.45x = 378,442.22 × 188,407.40
  4. Step 4: Simplify right side
    274,164.45x = 71,301,311,886.18
  5. Step 5: Solve for x
    x = 71,301,311,886.18/274,164.45
  6. Step 6: Final answer
    x = 260,067.68

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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.