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Finding the Fourth Proportional to 213,670.44, 320,512.22 and 73,427.08

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Solution

The fourth proportional to 213,670.44, 320,512.22 and 73,427.08 is: 110,142.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,670.44 : 320,512.22 = 73,427.08 : x
  2. Step 2: Convert to fraction form
    213,670.44/320,512.22 = 73,427.08/x
  3. Step 3: Cross multiply
    213,670.44x = 320,512.22 × 73,427.08
  4. Step 4: Simplify right side
    213,670.44x = 23,534,276,418.92
  5. Step 5: Solve for x
    x = 23,534,276,418.92/213,670.44
  6. Step 6: Final answer
    x = 110,142.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.