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Finding the Third Proportional to 154,820 and 239,277

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Solution

The third proportional to 154,820 and 239,277 is: 369,806.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,820 : 239,277 = 239,277 : x
  2. Step 2: Convert to fraction form
    154,820/239,277 = 239,277/x
  3. Step 3: Cross multiply
    154,820x = 239,277 × 239,277
  4. Step 4: Simplify right side
    154,820x = 57,253,482,729
  5. Step 5: Solve for x
    x = 57,253,482,729/154,820
  6. Step 6: Final answer
    x = 369,806.76

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.