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Finding the Third Proportional to 145,394 and 313,702

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Solution

The third proportional to 145,394 and 313,702 is: 676,843.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,394 : 313,702 = 313,702 : x
  2. Step 2: Convert to fraction form
    145,394/313,702 = 313,702/x
  3. Step 3: Cross multiply
    145,394x = 313,702 × 313,702
  4. Step 4: Simplify right side
    145,394x = 98,408,944,804
  5. Step 5: Solve for x
    x = 98,408,944,804/145,394
  6. Step 6: Final answer
    x = 676,843.23

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.