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Finding the Third Proportional to 308,388 and 449,455.50

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Solution

The third proportional to 308,388 and 449,455.50 is: 655,052.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,388 : 449,455.50 = 449,455.50 : x
  2. Step 2: Convert to fraction form
    308,388/449,455.50 = 449,455.50/x
  3. Step 3: Cross multiply
    308,388x = 449,455.50 × 449,455.50
  4. Step 4: Simplify right side
    308,388x = 202,010,246,480.25
  5. Step 5: Solve for x
    x = 202,010,246,480.25/308,388
  6. Step 6: Final answer
    x = 655,052.23

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.