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Finding the Third Proportional to 210,640.50 and 456,745.50

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Solution

The third proportional to 210,640.50 and 456,745.50 is: 990,390.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,640.50 : 456,745.50 = 456,745.50 : x
  2. Step 2: Convert to fraction form
    210,640.50/456,745.50 = 456,745.50/x
  3. Step 3: Cross multiply
    210,640.50x = 456,745.50 × 456,745.50
  4. Step 4: Simplify right side
    210,640.50x = 208,616,451,770.25
  5. Step 5: Solve for x
    x = 208,616,451,770.25/210,640.50
  6. Step 6: Final answer
    x = 990,390.98

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.