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Finding the Third Proportional to 185,415.75 and 403,879.50

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Solution

The third proportional to 185,415.75 and 403,879.50 is: 879,745.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,415.75 : 403,879.50 = 403,879.50 : x
  2. Step 2: Convert to fraction form
    185,415.75/403,879.50 = 403,879.50/x
  3. Step 3: Cross multiply
    185,415.75x = 403,879.50 × 403,879.50
  4. Step 4: Simplify right side
    185,415.75x = 163,118,650,520.25
  5. Step 5: Solve for x
    x = 163,118,650,520.25/185,415.75
  6. Step 6: Final answer
    x = 879,745.39

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.