Home / 312,512.42-431,236.32-174,665.90

Finding the Fourth Proportional to 312,512.42, 431,236.32 and 174,665.90

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Solution

The fourth proportional to 312,512.42, 431,236.32 and 174,665.90 is: 241,021.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,512.42 : 431,236.32 = 174,665.90 : x
  2. Step 2: Convert to fraction form
    312,512.42/431,236.32 = 174,665.90/x
  3. Step 3: Cross multiply
    312,512.42x = 431,236.32 × 174,665.90
  4. Step 4: Simplify right side
    312,512.42x = 75,322,279,945.49
  5. Step 5: Solve for x
    x = 75,322,279,945.49/312,512.42
  6. Step 6: Final answer
    x = 241,021.72

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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.