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Finding the Third Proportional to 70,216 and 150,320

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Solution

The third proportional to 70,216 and 150,320 is: 321,808.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,216 : 150,320 = 150,320 : x
  2. Step 2: Convert to fraction form
    70,216/150,320 = 150,320/x
  3. Step 3: Cross multiply
    70,216x = 150,320 × 150,320
  4. Step 4: Simplify right side
    70,216x = 22,596,102,400
  5. Step 5: Solve for x
    x = 22,596,102,400/70,216
  6. Step 6: Final answer
    x = 321,808.45

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.