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Finding the Third Proportional to 201,576 and 439,440

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Solution

The third proportional to 201,576 and 439,440 is: 957,988.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,576 : 439,440 = 439,440 : x
  2. Step 2: Convert to fraction form
    201,576/439,440 = 439,440/x
  3. Step 3: Cross multiply
    201,576x = 439,440 × 439,440
  4. Step 4: Simplify right side
    201,576x = 193,107,513,600
  5. Step 5: Solve for x
    x = 193,107,513,600/201,576
  6. Step 6: Final answer
    x = 957,988.62

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.