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Finding the Third Proportional to 197,379 and 288,072

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Solution

The third proportional to 197,379 and 288,072 is: 420,437.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,379 : 288,072 = 288,072 : x
  2. Step 2: Convert to fraction form
    197,379/288,072 = 288,072/x
  3. Step 3: Cross multiply
    197,379x = 288,072 × 288,072
  4. Step 4: Simplify right side
    197,379x = 82,985,477,184
  5. Step 5: Solve for x
    x = 82,985,477,184/197,379
  6. Step 6: Final answer
    x = 420,437.22

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.