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Finding the Fourth Proportional to 275,452.08, 380,131.44 and 154,600.88

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Solution

The fourth proportional to 275,452.08, 380,131.44 and 154,600.88 is: 213,353.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,452.08 : 380,131.44 = 154,600.88 : x
  2. Step 2: Convert to fraction form
    275,452.08/380,131.44 = 154,600.88/x
  3. Step 3: Cross multiply
    275,452.08x = 380,131.44 × 154,600.88
  4. Step 4: Simplify right side
    275,452.08x = 58,768,655,139.67
  5. Step 5: Solve for x
    x = 58,768,655,139.67/275,452.08
  6. Step 6: Final answer
    x = 213,353.46

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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.