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Finding the Third Proportional to 308,566.50 and 409,432.50

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Solution

The third proportional to 308,566.50 and 409,432.50 is: 543,270.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,566.50 : 409,432.50 = 409,432.50 : x
  2. Step 2: Convert to fraction form
    308,566.50/409,432.50 = 409,432.50/x
  3. Step 3: Cross multiply
    308,566.50x = 409,432.50 × 409,432.50
  4. Step 4: Simplify right side
    308,566.50x = 167,634,972,056.25
  5. Step 5: Solve for x
    x = 167,634,972,056.25/308,566.50
  6. Step 6: Final answer
    x = 543,270.16

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.