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Finding the Third Proportional to 259,218 and 370,683

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Solution

The third proportional to 259,218 and 370,683 is: 530,078.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,218 : 370,683 = 370,683 : x
  2. Step 2: Convert to fraction form
    259,218/370,683 = 370,683/x
  3. Step 3: Cross multiply
    259,218x = 370,683 × 370,683
  4. Step 4: Simplify right side
    259,218x = 137,405,886,489
  5. Step 5: Solve for x
    x = 137,405,886,489/259,218
  6. Step 6: Final answer
    x = 530,078.49

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.