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Finding the Third Proportional to 148,087 and 319,815

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Solution

The third proportional to 148,087 and 319,815 is: 690,686.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,087 : 319,815 = 319,815 : x
  2. Step 2: Convert to fraction form
    148,087/319,815 = 319,815/x
  3. Step 3: Cross multiply
    148,087x = 319,815 × 319,815
  4. Step 4: Simplify right side
    148,087x = 102,281,634,225
  5. Step 5: Solve for x
    x = 102,281,634,225/148,087
  6. Step 6: Final answer
    x = 690,686.11

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.