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Finding the Third Proportional to 140,818.50 and 211,288.50

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Solution

The third proportional to 140,818.50 and 211,288.50 is: 317,023.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,818.50 : 211,288.50 = 211,288.50 : x
  2. Step 2: Convert to fraction form
    140,818.50/211,288.50 = 211,288.50/x
  3. Step 3: Cross multiply
    140,818.50x = 211,288.50 × 211,288.50
  4. Step 4: Simplify right side
    140,818.50x = 44,642,830,232.25
  5. Step 5: Solve for x
    x = 44,642,830,232.25/140,818.50
  6. Step 6: Final answer
    x = 317,023.90

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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.