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Finding the Fourth Proportional to 290,236.37, 400,563.23 and 162,912.06

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Solution

The fourth proportional to 290,236.37, 400,563.23 and 162,912.06 is: 224,839.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,236.37 : 400,563.23 = 162,912.06 : x
  2. Step 2: Convert to fraction form
    290,236.37/400,563.23 = 162,912.06/x
  3. Step 3: Cross multiply
    290,236.37x = 400,563.23 × 162,912.06
  4. Step 4: Simplify right side
    290,236.37x = 65,256,580,144.99
  5. Step 5: Solve for x
    x = 65,256,580,144.99/290,236.37
  6. Step 6: Final answer
    x = 224,839.43

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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.