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Finding the Third Proportional to 115,780 and 253,748

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Solution

The third proportional to 115,780 and 253,748 is: 556,124.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,780 : 253,748 = 253,748 : x
  2. Step 2: Convert to fraction form
    115,780/253,748 = 253,748/x
  3. Step 3: Cross multiply
    115,780x = 253,748 × 253,748
  4. Step 4: Simplify right side
    115,780x = 64,388,047,504
  5. Step 5: Solve for x
    x = 64,388,047,504/115,780
  6. Step 6: Final answer
    x = 556,124.09

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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.