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Finding the Third Proportional to 135,485 and 297,783

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Solution

The third proportional to 135,485 and 297,783 is: 654,498.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,485 : 297,783 = 297,783 : x
  2. Step 2: Convert to fraction form
    135,485/297,783 = 297,783/x
  3. Step 3: Cross multiply
    135,485x = 297,783 × 297,783
  4. Step 4: Simplify right side
    135,485x = 88,674,715,089
  5. Step 5: Solve for x
    x = 88,674,715,089/135,485
  6. Step 6: Final answer
    x = 654,498.40

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.