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Finding the Third Proportional to 277,781.63 and 393,317.44

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Solution

The third proportional to 277,781.63 and 393,317.44 is: 556,907.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,781.63 : 393,317.44 = 393,317.44 : x
  2. Step 2: Convert to fraction form
    277,781.63/393,317.44 = 393,317.44/x
  3. Step 3: Cross multiply
    277,781.63x = 393,317.44 × 393,317.44
  4. Step 4: Simplify right side
    277,781.63x = 154,698,606,641.57
  5. Step 5: Solve for x
    x = 154,698,606,641.57/277,781.63
  6. Step 6: Final answer
    x = 556,907.27

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.