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Finding the Third Proportional to 257,017.50 and 556,939.50

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Solution

The third proportional to 257,017.50 and 556,939.50 is: 1,206,850.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,017.50 : 556,939.50 = 556,939.50 : x
  2. Step 2: Convert to fraction form
    257,017.50/556,939.50 = 556,939.50/x
  3. Step 3: Cross multiply
    257,017.50x = 556,939.50 × 556,939.50
  4. Step 4: Simplify right side
    257,017.50x = 310,181,606,660.25
  5. Step 5: Solve for x
    x = 310,181,606,660.25/257,017.50
  6. Step 6: Final answer
    x = 1,206,850.14

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.