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Finding the Third Proportional to 315,211.50 and 471,703.50

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Solution

The third proportional to 315,211.50 and 471,703.50 is: 705,888.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,211.50 : 471,703.50 = 471,703.50 : x
  2. Step 2: Convert to fraction form
    315,211.50/471,703.50 = 471,703.50/x
  3. Step 3: Cross multiply
    315,211.50x = 471,703.50 × 471,703.50
  4. Step 4: Simplify right side
    315,211.50x = 222,504,191,912.25
  5. Step 5: Solve for x
    x = 222,504,191,912.25/315,211.50
  6. Step 6: Final answer
    x = 705,888.56

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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.