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Finding the Third Proportional to 145,220 and 319,104

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Solution

The third proportional to 145,220 and 319,104 is: 701,193.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,220 : 319,104 = 319,104 : x
  2. Step 2: Convert to fraction form
    145,220/319,104 = 319,104/x
  3. Step 3: Cross multiply
    145,220x = 319,104 × 319,104
  4. Step 4: Simplify right side
    145,220x = 101,827,362,816
  5. Step 5: Solve for x
    x = 101,827,362,816/145,220
  6. Step 6: Final answer
    x = 701,193.79

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.