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Finding the Fourth Proportional to 202,769.56, 279,728.99 and 131,172.67

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Solution

The fourth proportional to 202,769.56, 279,728.99 and 131,172.67 is: 180,958.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,769.56 : 279,728.99 = 131,172.67 : x
  2. Step 2: Convert to fraction form
    202,769.56/279,728.99 = 131,172.67/x
  3. Step 3: Cross multiply
    202,769.56x = 279,728.99 × 131,172.67
  4. Step 4: Simplify right side
    202,769.56x = 36,692,797,838.84
  5. Step 5: Solve for x
    x = 36,692,797,838.84/202,769.56
  6. Step 6: Final answer
    x = 180,958.12

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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.