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Finding the Third Proportional to 85,803 and 189,057

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Solution

The third proportional to 85,803 and 189,057 is: 416,565.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,803 : 189,057 = 189,057 : x
  2. Step 2: Convert to fraction form
    85,803/189,057 = 189,057/x
  3. Step 3: Cross multiply
    85,803x = 189,057 × 189,057
  4. Step 4: Simplify right side
    85,803x = 35,742,549,249
  5. Step 5: Solve for x
    x = 35,742,549,249/85,803
  6. Step 6: Final answer
    x = 416,565.26

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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.