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Finding the Third Proportional to 210,008 and 336,879

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Solution

The third proportional to 210,008 and 336,879 is: 540,395.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,008 : 336,879 = 336,879 : x
  2. Step 2: Convert to fraction form
    210,008/336,879 = 336,879/x
  3. Step 3: Cross multiply
    210,008x = 336,879 × 336,879
  4. Step 4: Simplify right side
    210,008x = 113,487,460,641
  5. Step 5: Solve for x
    x = 113,487,460,641/210,008
  6. Step 6: Final answer
    x = 540,395.89

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.