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Finding the Third Proportional to 153,430 and 328,181

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Solution

The third proportional to 153,430 and 328,181 is: 701,966.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,430 : 328,181 = 328,181 : x
  2. Step 2: Convert to fraction form
    153,430/328,181 = 328,181/x
  3. Step 3: Cross multiply
    153,430x = 328,181 × 328,181
  4. Step 4: Simplify right side
    153,430x = 107,702,768,761
  5. Step 5: Solve for x
    x = 107,702,768,761/153,430
  6. Step 6: Final answer
    x = 701,966.82

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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.