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Finding the Third Proportional to 264,219 and 409,291.50

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Solution

The third proportional to 264,219 and 409,291.50 is: 634,017.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,219 : 409,291.50 = 409,291.50 : x
  2. Step 2: Convert to fraction form
    264,219/409,291.50 = 409,291.50/x
  3. Step 3: Cross multiply
    264,219x = 409,291.50 × 409,291.50
  4. Step 4: Simplify right side
    264,219x = 167,519,531,972.25
  5. Step 5: Solve for x
    x = 167,519,531,972.25/264,219
  6. Step 6: Final answer
    x = 634,017.74

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.