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Finding the Fourth Proportional to 275,016.87, 379,525.64 and 154,158.39

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Solution

The fourth proportional to 275,016.87, 379,525.64 and 154,158.39 is: 212,739.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,016.87 : 379,525.64 = 154,158.39 : x
  2. Step 2: Convert to fraction form
    275,016.87/379,525.64 = 154,158.39/x
  3. Step 3: Cross multiply
    275,016.87x = 379,525.64 × 154,158.39
  4. Step 4: Simplify right side
    275,016.87x = 58,507,060,855.33
  5. Step 5: Solve for x
    x = 58,507,060,855.33/275,016.87
  6. Step 6: Final answer
    x = 212,739.90

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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.