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Finding the Third Proportional to 288,090 and 436,110

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Solution

The third proportional to 288,090 and 436,110 is: 660,182.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,090 : 436,110 = 436,110 : x
  2. Step 2: Convert to fraction form
    288,090/436,110 = 436,110/x
  3. Step 3: Cross multiply
    288,090x = 436,110 × 436,110
  4. Step 4: Simplify right side
    288,090x = 190,191,932,100
  5. Step 5: Solve for x
    x = 190,191,932,100/288,090
  6. Step 6: Final answer
    x = 660,182.35

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.