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Finding the Third Proportional to 203,666 and 437,428

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Solution

The third proportional to 203,666 and 437,428 is: 939,495.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,666 : 437,428 = 437,428 : x
  2. Step 2: Convert to fraction form
    203,666/437,428 = 437,428/x
  3. Step 3: Cross multiply
    203,666x = 437,428 × 437,428
  4. Step 4: Simplify right side
    203,666x = 191,343,255,184
  5. Step 5: Solve for x
    x = 191,343,255,184/203,666
  6. Step 6: Final answer
    x = 939,495.33

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.