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Finding the Third Proportional to 153,620 and 230,430

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Solution

The third proportional to 153,620 and 230,430 is: 345,645

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,620 : 230,430 = 230,430 : x
  2. Step 2: Convert to fraction form
    153,620/230,430 = 230,430/x
  3. Step 3: Cross multiply
    153,620x = 230,430 × 230,430
  4. Step 4: Simplify right side
    153,620x = 53,097,984,900
  5. Step 5: Solve for x
    x = 53,097,984,900/153,620
  6. Step 6: Final answer
    x = 345,645

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.