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Finding the Third Proportional to 130,740 and 276,168

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Solution

The third proportional to 130,740 and 276,168 is: 583,362.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,740 : 276,168 = 276,168 : x
  2. Step 2: Convert to fraction form
    130,740/276,168 = 276,168/x
  3. Step 3: Cross multiply
    130,740x = 276,168 × 276,168
  4. Step 4: Simplify right side
    130,740x = 76,268,764,224
  5. Step 5: Solve for x
    x = 76,268,764,224/130,740
  6. Step 6: Final answer
    x = 583,362.13

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.