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Finding the Third Proportional to 143,220.66 and 298,211.63

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Solution

The third proportional to 143,220.66 and 298,211.63 is: 620,931.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,220.66 : 298,211.63 = 298,211.63 : x
  2. Step 2: Convert to fraction form
    143,220.66/298,211.63 = 298,211.63/x
  3. Step 3: Cross multiply
    143,220.66x = 298,211.63 × 298,211.63
  4. Step 4: Simplify right side
    143,220.66x = 88,930,173,285.14
  5. Step 5: Solve for x
    x = 88,930,173,285.14/143,220.66
  6. Step 6: Final answer
    x = 620,931.20

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.