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Finding the Third Proportional to 145,659 and 221,529

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Solution

The third proportional to 145,659 and 221,529 is: 336,917.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,659 : 221,529 = 221,529 : x
  2. Step 2: Convert to fraction form
    145,659/221,529 = 221,529/x
  3. Step 3: Cross multiply
    145,659x = 221,529 × 221,529
  4. Step 4: Simplify right side
    145,659x = 49,075,097,841
  5. Step 5: Solve for x
    x = 49,075,097,841/145,659
  6. Step 6: Final answer
    x = 336,917.72

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.