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Finding the Third Proportional to 255,710 and 538,378

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Solution

The third proportional to 255,710 and 538,378 is: 1,133,514.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,710 : 538,378 = 538,378 : x
  2. Step 2: Convert to fraction form
    255,710/538,378 = 538,378/x
  3. Step 3: Cross multiply
    255,710x = 538,378 × 538,378
  4. Step 4: Simplify right side
    255,710x = 289,850,870,884
  5. Step 5: Solve for x
    x = 289,850,870,884/255,710
  6. Step 6: Final answer
    x = 1,133,514.02

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.