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Finding the Third Proportional to 188,532 and 390,188

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Solution

The third proportional to 188,532 and 390,188 is: 807,537.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,532 : 390,188 = 390,188 : x
  2. Step 2: Convert to fraction form
    188,532/390,188 = 390,188/x
  3. Step 3: Cross multiply
    188,532x = 390,188 × 390,188
  4. Step 4: Simplify right side
    188,532x = 152,246,675,344
  5. Step 5: Solve for x
    x = 152,246,675,344/188,532
  6. Step 6: Final answer
    x = 807,537.58

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.