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Finding the Fourth Proportional to 275,524.85, 380,224.10 and 154,666.37

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Solution

The fourth proportional to 275,524.85, 380,224.10 and 154,666.37 is: 213,439.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,524.85 : 380,224.10 = 154,666.37 : x
  2. Step 2: Convert to fraction form
    275,524.85/380,224.10 = 154,666.37/x
  3. Step 3: Cross multiply
    275,524.85x = 380,224.10 × 154,666.37
  4. Step 4: Simplify right side
    275,524.85x = 58,807,878,659.06
  5. Step 5: Solve for x
    x = 58,807,878,659.06/275,524.85
  6. Step 6: Final answer
    x = 213,439.48

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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.