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Finding the Fourth Proportional to 451,330, 622,835.40 and 250,138.96

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Solution

The fourth proportional to 451,330, 622,835.40 and 250,138.96 is: 345,191.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,330 : 622,835.40 = 250,138.96 : x
  2. Step 2: Convert to fraction form
    451,330/622,835.40 = 250,138.96/x
  3. Step 3: Cross multiply
    451,330x = 622,835.40 × 250,138.96
  4. Step 4: Simplify right side
    451,330x = 155,795,399,207.18
  5. Step 5: Solve for x
    x = 155,795,399,207.18/451,330
  6. Step 6: Final answer
    x = 345,191.76

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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.