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Finding the Third Proportional to 209,957 and 314,935

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Solution

The third proportional to 209,957 and 314,935 is: 472,401.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,957 : 314,935 = 314,935 : x
  2. Step 2: Convert to fraction form
    209,957/314,935 = 314,935/x
  3. Step 3: Cross multiply
    209,957x = 314,935 × 314,935
  4. Step 4: Simplify right side
    209,957x = 99,184,054,225
  5. Step 5: Solve for x
    x = 99,184,054,225/209,957
  6. Step 6: Final answer
    x = 472,401.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.