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Finding the Third Proportional to 70,276 and 153,660

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Solution

The third proportional to 70,276 and 153,660 is: 335,980.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,276 : 153,660 = 153,660 : x
  2. Step 2: Convert to fraction form
    70,276/153,660 = 153,660/x
  3. Step 3: Cross multiply
    70,276x = 153,660 × 153,660
  4. Step 4: Simplify right side
    70,276x = 23,611,395,600
  5. Step 5: Solve for x
    x = 23,611,395,600/70,276
  6. Step 6: Final answer
    x = 335,980.93

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.