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Finding the Third Proportional to 70,911 and 145,365

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Solution

The third proportional to 70,911 and 145,365 is: 297,993.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,911 : 145,365 = 145,365 : x
  2. Step 2: Convert to fraction form
    70,911/145,365 = 145,365/x
  3. Step 3: Cross multiply
    70,911x = 145,365 × 145,365
  4. Step 4: Simplify right side
    70,911x = 21,130,983,225
  5. Step 5: Solve for x
    x = 21,130,983,225/70,911
  6. Step 6: Final answer
    x = 297,993.02

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.