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Finding the Third Proportional to 259,221 and 370,687.50

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Solution

The third proportional to 259,221 and 370,687.50 is: 530,085.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,221 : 370,687.50 = 370,687.50 : x
  2. Step 2: Convert to fraction form
    259,221/370,687.50 = 370,687.50/x
  3. Step 3: Cross multiply
    259,221x = 370,687.50 × 370,687.50
  4. Step 4: Simplify right side
    259,221x = 137,409,222,656.25
  5. Step 5: Solve for x
    x = 137,409,222,656.25/259,221
  6. Step 6: Final answer
    x = 530,085.23

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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.