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Finding the Third Proportional to 307,836 and 460,515

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Solution

The third proportional to 307,836 and 460,515 is: 688,918.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,836 : 460,515 = 460,515 : x
  2. Step 2: Convert to fraction form
    307,836/460,515 = 460,515/x
  3. Step 3: Cross multiply
    307,836x = 460,515 × 460,515
  4. Step 4: Simplify right side
    307,836x = 212,074,065,225
  5. Step 5: Solve for x
    x = 212,074,065,225/307,836
  6. Step 6: Final answer
    x = 688,918.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.