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Finding the Third Proportional to 199,749.75 and 427,930.50

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Solution

The third proportional to 199,749.75 and 427,930.50 is: 916,769.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,749.75 : 427,930.50 = 427,930.50 : x
  2. Step 2: Convert to fraction form
    199,749.75/427,930.50 = 427,930.50/x
  3. Step 3: Cross multiply
    199,749.75x = 427,930.50 × 427,930.50
  4. Step 4: Simplify right side
    199,749.75x = 183,124,512,830.25
  5. Step 5: Solve for x
    x = 183,124,512,830.25/199,749.75
  6. Step 6: Final answer
    x = 916,769.67

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.