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Finding the Third Proportional to 213,669 and 455,935.50

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Solution

The third proportional to 213,669 and 455,935.50 is: 972,893.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,669 : 455,935.50 = 455,935.50 : x
  2. Step 2: Convert to fraction form
    213,669/455,935.50 = 455,935.50/x
  3. Step 3: Cross multiply
    213,669x = 455,935.50 × 455,935.50
  4. Step 4: Simplify right side
    213,669x = 207,877,180,160.25
  5. Step 5: Solve for x
    x = 207,877,180,160.25/213,669
  6. Step 6: Final answer
    x = 972,893.49

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.