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Finding the Third Proportional to 355,278 and 761,208

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Solution

The third proportional to 355,278 and 761,208 is: 1,630,941.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,278 : 761,208 = 761,208 : x
  2. Step 2: Convert to fraction form
    355,278/761,208 = 761,208/x
  3. Step 3: Cross multiply
    355,278x = 761,208 × 761,208
  4. Step 4: Simplify right side
    355,278x = 579,437,619,264
  5. Step 5: Solve for x
    x = 579,437,619,264/355,278
  6. Step 6: Final answer
    x = 1,630,941.46

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.