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Finding the Third Proportional to 145,710 and 320,004

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Solution

The third proportional to 145,710 and 320,004 is: 702,783.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,710 : 320,004 = 320,004 : x
  2. Step 2: Convert to fraction form
    145,710/320,004 = 320,004/x
  3. Step 3: Cross multiply
    145,710x = 320,004 × 320,004
  4. Step 4: Simplify right side
    145,710x = 102,402,560,016
  5. Step 5: Solve for x
    x = 102,402,560,016/145,710
  6. Step 6: Final answer
    x = 702,783.34

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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.