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Finding the Third Proportional to 30,020 and 65,168

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Solution

The third proportional to 30,020 and 65,168 is: 141,467.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,020 : 65,168 = 65,168 : x
  2. Step 2: Convert to fraction form
    30,020/65,168 = 65,168/x
  3. Step 3: Cross multiply
    30,020x = 65,168 × 65,168
  4. Step 4: Simplify right side
    30,020x = 4,246,868,224
  5. Step 5: Solve for x
    x = 4,246,868,224/30,020
  6. Step 6: Final answer
    x = 141,467.96

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.