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Finding the Third Proportional to 288,120 and 436,152

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Solution

The third proportional to 288,120 and 436,152 is: 660,240.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,120 : 436,152 = 436,152 : x
  2. Step 2: Convert to fraction form
    288,120/436,152 = 436,152/x
  3. Step 3: Cross multiply
    288,120x = 436,152 × 436,152
  4. Step 4: Simplify right side
    288,120x = 190,228,567,104
  5. Step 5: Solve for x
    x = 190,228,567,104/288,120
  6. Step 6: Final answer
    x = 660,240.76

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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.