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Finding the Third Proportional to 145,804 and 313,316

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Solution

The third proportional to 145,804 and 313,316 is: 673,279.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,804 : 313,316 = 313,316 : x
  2. Step 2: Convert to fraction form
    145,804/313,316 = 313,316/x
  3. Step 3: Cross multiply
    145,804x = 313,316 × 313,316
  4. Step 4: Simplify right side
    145,804x = 98,166,915,856
  5. Step 5: Solve for x
    x = 98,166,915,856/145,804
  6. Step 6: Final answer
    x = 673,279.99

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.