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Finding the Third Proportional to 121,729.50 and 265,585.50

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Solution

The third proportional to 121,729.50 and 265,585.50 is: 579,445.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,729.50 : 265,585.50 = 265,585.50 : x
  2. Step 2: Convert to fraction form
    121,729.50/265,585.50 = 265,585.50/x
  3. Step 3: Cross multiply
    121,729.50x = 265,585.50 × 265,585.50
  4. Step 4: Simplify right side
    121,729.50x = 70,535,657,810.25
  5. Step 5: Solve for x
    x = 70,535,657,810.25/121,729.50
  6. Step 6: Final answer
    x = 579,445.88

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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.