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Finding the Fourth Proportional to 275,679.34, 380,581.98 and 185,509.42

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Solution

The fourth proportional to 275,679.34, 380,581.98 and 185,509.42 is: 256,100.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,679.34 : 380,581.98 = 185,509.42 : x
  2. Step 2: Convert to fraction form
    275,679.34/380,581.98 = 185,509.42/x
  3. Step 3: Cross multiply
    275,679.34x = 380,581.98 × 185,509.42
  4. Step 4: Simplify right side
    275,679.34x = 70,601,542,372.25
  5. Step 5: Solve for x
    x = 70,601,542,372.25/275,679.34
  6. Step 6: Final answer
    x = 256,100.23

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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.