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Finding the Third Proportional to 311,769 and 470,461.50

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Solution

The third proportional to 311,769 and 470,461.50 is: 709,929.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,769 : 470,461.50 = 470,461.50 : x
  2. Step 2: Convert to fraction form
    311,769/470,461.50 = 470,461.50/x
  3. Step 3: Cross multiply
    311,769x = 470,461.50 × 470,461.50
  4. Step 4: Simplify right side
    311,769x = 221,334,022,982.25
  5. Step 5: Solve for x
    x = 221,334,022,982.25/311,769
  6. Step 6: Final answer
    x = 709,929.54

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.