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Finding the Third Proportional to 145,001.25 and 321,106.50

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Solution

The third proportional to 145,001.25 and 321,106.50 is: 711,093.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,001.25 : 321,106.50 = 321,106.50 : x
  2. Step 2: Convert to fraction form
    145,001.25/321,106.50 = 321,106.50/x
  3. Step 3: Cross multiply
    145,001.25x = 321,106.50 × 321,106.50
  4. Step 4: Simplify right side
    145,001.25x = 103,109,384,342.25
  5. Step 5: Solve for x
    x = 103,109,384,342.25/145,001.25
  6. Step 6: Final answer
    x = 711,093.07

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.