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Finding the Third Proportional to 121,413 and 190,045

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Solution

The third proportional to 121,413 and 190,045 is: 297,473.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,413 : 190,045 = 190,045 : x
  2. Step 2: Convert to fraction form
    121,413/190,045 = 190,045/x
  3. Step 3: Cross multiply
    121,413x = 190,045 × 190,045
  4. Step 4: Simplify right side
    121,413x = 36,117,102,025
  5. Step 5: Solve for x
    x = 36,117,102,025/121,413
  6. Step 6: Final answer
    x = 297,473.10

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.