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Finding the Third Proportional to 173,988 and 255,879

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Solution

The third proportional to 173,988 and 255,879 is: 376,313.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,988 : 255,879 = 255,879 : x
  2. Step 2: Convert to fraction form
    173,988/255,879 = 255,879/x
  3. Step 3: Cross multiply
    173,988x = 255,879 × 255,879
  4. Step 4: Simplify right side
    173,988x = 65,474,062,641
  5. Step 5: Solve for x
    x = 65,474,062,641/173,988
  6. Step 6: Final answer
    x = 376,313.67

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.