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Finding the Third Proportional to 210,628 and 343,888

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Solution

The third proportional to 210,628 and 343,888 is: 561,458.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,628 : 343,888 = 343,888 : x
  2. Step 2: Convert to fraction form
    210,628/343,888 = 343,888/x
  3. Step 3: Cross multiply
    210,628x = 343,888 × 343,888
  4. Step 4: Simplify right side
    210,628x = 118,258,956,544
  5. Step 5: Solve for x
    x = 118,258,956,544/210,628
  6. Step 6: Final answer
    x = 561,458.86

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.