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Finding the Third Proportional to 277,104 and 420,030

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Solution

The third proportional to 277,104 and 420,030 is: 636,675.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,104 : 420,030 = 420,030 : x
  2. Step 2: Convert to fraction form
    277,104/420,030 = 420,030/x
  3. Step 3: Cross multiply
    277,104x = 420,030 × 420,030
  4. Step 4: Simplify right side
    277,104x = 176,425,200,900
  5. Step 5: Solve for x
    x = 176,425,200,900/277,104
  6. Step 6: Final answer
    x = 636,675.04

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.