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Finding the Third Proportional to 386.02 and 848.60

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Solution

The third proportional to 386.02 and 848.60 is: 1,865.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    386.02 : 848.60 = 848.60 : x
  2. Step 2: Convert to fraction form
    386.02/848.60 = 848.60/x
  3. Step 3: Cross multiply
    386.02x = 848.60 × 848.60
  4. Step 4: Simplify right side
    386.02x = 720,124.61
  5. Step 5: Solve for x
    x = 720,124.61/386.02
  6. Step 6: Final answer
    x = 1,865.53

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.