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Finding the Third Proportional to 103,430 and 162,521

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Solution

The third proportional to 103,430 and 162,521 is: 255,371.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,430 : 162,521 = 162,521 : x
  2. Step 2: Convert to fraction form
    103,430/162,521 = 162,521/x
  3. Step 3: Cross multiply
    103,430x = 162,521 × 162,521
  4. Step 4: Simplify right side
    103,430x = 26,413,075,441
  5. Step 5: Solve for x
    x = 26,413,075,441/103,430
  6. Step 6: Final answer
    x = 255,371.51

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.