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Finding the Third Proportional to 273,639 and 409,360.50

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Solution

The third proportional to 273,639 and 409,360.50 is: 612,398.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,639 : 409,360.50 = 409,360.50 : x
  2. Step 2: Convert to fraction form
    273,639/409,360.50 = 409,360.50/x
  3. Step 3: Cross multiply
    273,639x = 409,360.50 × 409,360.50
  4. Step 4: Simplify right side
    273,639x = 167,576,018,960.25
  5. Step 5: Solve for x
    x = 167,576,018,960.25/273,639
  6. Step 6: Final answer
    x = 612,398.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.