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Finding the Third Proportional to 201,458.25 and 430,573.50

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Solution

The third proportional to 201,458.25 and 430,573.50 is: 920,257.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,458.25 : 430,573.50 = 430,573.50 : x
  2. Step 2: Convert to fraction form
    201,458.25/430,573.50 = 430,573.50/x
  3. Step 3: Cross multiply
    201,458.25x = 430,573.50 × 430,573.50
  4. Step 4: Simplify right side
    201,458.25x = 185,393,538,902.25
  5. Step 5: Solve for x
    x = 185,393,538,902.25/201,458.25
  6. Step 6: Final answer
    x = 920,257.86

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.