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Finding the Third Proportional to 162,428 and 221,277

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Solution

The third proportional to 162,428 and 221,277 is: 301,447.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,428 : 221,277 = 221,277 : x
  2. Step 2: Convert to fraction form
    162,428/221,277 = 221,277/x
  3. Step 3: Cross multiply
    162,428x = 221,277 × 221,277
  4. Step 4: Simplify right side
    162,428x = 48,963,510,729
  5. Step 5: Solve for x
    x = 48,963,510,729/162,428
  6. Step 6: Final answer
    x = 301,447.48

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.