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Finding the Third Proportional to 90,828.84 and 197,402.38

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Solution

The third proportional to 90,828.84 and 197,402.38 is: 429,023.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,828.84 : 197,402.38 = 197,402.38 : x
  2. Step 2: Convert to fraction form
    90,828.84/197,402.38 = 197,402.38/x
  3. Step 3: Cross multiply
    90,828.84x = 197,402.38 × 197,402.38
  4. Step 4: Simplify right side
    90,828.84x = 38,967,699,197.85
  5. Step 5: Solve for x
    x = 38,967,699,197.85/90,828.84
  6. Step 6: Final answer
    x = 429,023.40

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.