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Finding the Third Proportional to 211,110.75 and 430,816.50

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Solution

The third proportional to 211,110.75 and 430,816.50 is: 879,172.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,110.75 : 430,816.50 = 430,816.50 : x
  2. Step 2: Convert to fraction form
    211,110.75/430,816.50 = 430,816.50/x
  3. Step 3: Cross multiply
    211,110.75x = 430,816.50 × 430,816.50
  4. Step 4: Simplify right side
    211,110.75x = 185,602,856,672.25
  5. Step 5: Solve for x
    x = 185,602,856,672.25/211,110.75
  6. Step 6: Final answer
    x = 879,172.93

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.