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Finding the Third Proportional to 130,522 and 281,780

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Solution

The third proportional to 130,522 and 281,780 is: 608,326.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,522 : 281,780 = 281,780 : x
  2. Step 2: Convert to fraction form
    130,522/281,780 = 281,780/x
  3. Step 3: Cross multiply
    130,522x = 281,780 × 281,780
  4. Step 4: Simplify right side
    130,522x = 79,399,968,400
  5. Step 5: Solve for x
    x = 79,399,968,400/130,522
  6. Step 6: Final answer
    x = 608,326.32

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.