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Finding the Third Proportional to 315,634.50 and 477,218.25

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Solution

The third proportional to 315,634.50 and 477,218.25 is: 721,522.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,634.50 : 477,218.25 = 477,218.25 : x
  2. Step 2: Convert to fraction form
    315,634.50/477,218.25 = 477,218.25/x
  3. Step 3: Cross multiply
    315,634.50x = 477,218.25 × 477,218.25
  4. Step 4: Simplify right side
    315,634.50x = 227,737,258,133.06
  5. Step 5: Solve for x
    x = 227,737,258,133.06/315,634.50
  6. Step 6: Final answer
    x = 721,522.07

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.