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Finding the Third Proportional to 250,779.75 and 388,745.25

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Solution

The third proportional to 250,779.75 and 388,745.25 is: 602,611.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,779.75 : 388,745.25 = 388,745.25 : x
  2. Step 2: Convert to fraction form
    250,779.75/388,745.25 = 388,745.25/x
  3. Step 3: Cross multiply
    250,779.75x = 388,745.25 × 388,745.25
  4. Step 4: Simplify right side
    250,779.75x = 151,122,869,397.56
  5. Step 5: Solve for x
    x = 151,122,869,397.56/250,779.75
  6. Step 6: Final answer
    x = 602,611.93

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.