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Finding the Third Proportional to 98,538.94 and 215,478.75

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Solution

The third proportional to 98,538.94 and 215,478.75 is: 471,195.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,538.94 : 215,478.75 = 215,478.75 : x
  2. Step 2: Convert to fraction form
    98,538.94/215,478.75 = 215,478.75/x
  3. Step 3: Cross multiply
    98,538.94x = 215,478.75 × 215,478.75
  4. Step 4: Simplify right side
    98,538.94x = 46,431,091,701.56
  5. Step 5: Solve for x
    x = 46,431,091,701.56/98,538.94
  6. Step 6: Final answer
    x = 471,195.38

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.