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Finding the Fourth Proportional to 275,570.27, 380,257.62 and 154,724.75

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Solution

The fourth proportional to 275,570.27, 380,257.62 and 154,724.75 is: 213,503.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,570.27 : 380,257.62 = 154,724.75 : x
  2. Step 2: Convert to fraction form
    275,570.27/380,257.62 = 154,724.75/x
  3. Step 3: Cross multiply
    275,570.27x = 380,257.62 × 154,724.75
  4. Step 4: Simplify right side
    275,570.27x = 58,835,263,288.81
  5. Step 5: Solve for x
    x = 58,835,263,288.81/275,570.27
  6. Step 6: Final answer
    x = 213,503.67

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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.