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Finding the Third Proportional to 133,020 and 289,368

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Solution

The third proportional to 133,020 and 289,368 is: 629,483.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,020 : 289,368 = 289,368 : x
  2. Step 2: Convert to fraction form
    133,020/289,368 = 289,368/x
  3. Step 3: Cross multiply
    133,020x = 289,368 × 289,368
  4. Step 4: Simplify right side
    133,020x = 83,733,839,424
  5. Step 5: Solve for x
    x = 83,733,839,424/133,020
  6. Step 6: Final answer
    x = 629,483.08

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.