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Finding the Third Proportional to 121,828.50 and 265,725

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Solution

The third proportional to 121,828.50 and 265,725 is: 579,583.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,828.50 : 265,725 = 265,725 : x
  2. Step 2: Convert to fraction form
    121,828.50/265,725 = 265,725/x
  3. Step 3: Cross multiply
    121,828.50x = 265,725 × 265,725
  4. Step 4: Simplify right side
    121,828.50x = 70,609,775,625
  5. Step 5: Solve for x
    x = 70,609,775,625/121,828.50
  6. Step 6: Final answer
    x = 579,583.39

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.