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Finding the Third Proportional to 221,533.50 and 485,955.75

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Solution

The third proportional to 221,533.50 and 485,955.75 is: 1,065,992.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,533.50 : 485,955.75 = 485,955.75 : x
  2. Step 2: Convert to fraction form
    221,533.50/485,955.75 = 485,955.75/x
  3. Step 3: Cross multiply
    221,533.50x = 485,955.75 × 485,955.75
  4. Step 4: Simplify right side
    221,533.50x = 236,152,990,958.06
  5. Step 5: Solve for x
    x = 236,152,990,958.06/221,533.50
  6. Step 6: Final answer
    x = 1,065,992.24

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.