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Finding the Third Proportional to 202,620 and 440,915.50

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Solution

The third proportional to 202,620 and 440,915.50 is: 959,463.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,620 : 440,915.50 = 440,915.50 : x
  2. Step 2: Convert to fraction form
    202,620/440,915.50 = 440,915.50/x
  3. Step 3: Cross multiply
    202,620x = 440,915.50 × 440,915.50
  4. Step 4: Simplify right side
    202,620x = 194,406,478,140.25
  5. Step 5: Solve for x
    x = 194,406,478,140.25/202,620
  6. Step 6: Final answer
    x = 959,463.42

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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.