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Finding the Third Proportional to 288,132 and 436,176

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Solution

The third proportional to 288,132 and 436,176 is: 660,285.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,132 : 436,176 = 436,176 : x
  2. Step 2: Convert to fraction form
    288,132/436,176 = 436,176/x
  3. Step 3: Cross multiply
    288,132x = 436,176 × 436,176
  4. Step 4: Simplify right side
    288,132x = 190,249,502,976
  5. Step 5: Solve for x
    x = 190,249,502,976/288,132
  6. Step 6: Final answer
    x = 660,285.92

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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.