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Finding the Fourth Proportional to 250,471.09, 345,448.56 and 220,191.67

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Solution

The fourth proportional to 250,471.09, 345,448.56 and 220,191.67 is: 303,687.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,471.09 : 345,448.56 = 220,191.67 : x
  2. Step 2: Convert to fraction form
    250,471.09/345,448.56 = 220,191.67/x
  3. Step 3: Cross multiply
    250,471.09x = 345,448.56 × 220,191.67
  4. Step 4: Simplify right side
    250,471.09x = 76,064,895,325.50
  5. Step 5: Solve for x
    x = 76,064,895,325.50/250,471.09
  6. Step 6: Final answer
    x = 303,687.33

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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.