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Finding the Third Proportional to 133,120 and 288,388

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Solution

The third proportional to 133,120 and 288,388 is: 624,756.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,120 : 288,388 = 288,388 : x
  2. Step 2: Convert to fraction form
    133,120/288,388 = 288,388/x
  3. Step 3: Cross multiply
    133,120x = 288,388 × 288,388
  4. Step 4: Simplify right side
    133,120x = 83,167,638,544
  5. Step 5: Solve for x
    x = 83,167,638,544/133,120
  6. Step 6: Final answer
    x = 624,756.90

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.