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Finding the Third Proportional to 238,722 and 525,420

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Solution

The third proportional to 238,722 and 525,420 is: 1,156,433.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,722 : 525,420 = 525,420 : x
  2. Step 2: Convert to fraction form
    238,722/525,420 = 525,420/x
  3. Step 3: Cross multiply
    238,722x = 525,420 × 525,420
  4. Step 4: Simplify right side
    238,722x = 276,066,176,400
  5. Step 5: Solve for x
    x = 276,066,176,400/238,722
  6. Step 6: Final answer
    x = 1,156,433.74

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.