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Finding the Third Proportional to 154,454 and 338,430

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Solution

The third proportional to 154,454 and 338,430 is: 741,546.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,454 : 338,430 = 338,430 : x
  2. Step 2: Convert to fraction form
    154,454/338,430 = 338,430/x
  3. Step 3: Cross multiply
    154,454x = 338,430 × 338,430
  4. Step 4: Simplify right side
    154,454x = 114,534,864,900
  5. Step 5: Solve for x
    x = 114,534,864,900/154,454
  6. Step 6: Final answer
    x = 741,546.77

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.