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Finding the Third Proportional to 154,893 and 242,679

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Solution

The third proportional to 154,893 and 242,679 is: 380,217.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,893 : 242,679 = 242,679 : x
  2. Step 2: Convert to fraction form
    154,893/242,679 = 242,679/x
  3. Step 3: Cross multiply
    154,893x = 242,679 × 242,679
  4. Step 4: Simplify right side
    154,893x = 58,893,097,041
  5. Step 5: Solve for x
    x = 58,893,097,041/154,893
  6. Step 6: Final answer
    x = 380,217.94

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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.