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Finding the Third Proportional to 253,603.13 and 404,394.75

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Solution

The third proportional to 253,603.13 and 404,394.75 is: 644,846.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,603.13 : 404,394.75 = 404,394.75 : x
  2. Step 2: Convert to fraction form
    253,603.13/404,394.75 = 404,394.75/x
  3. Step 3: Cross multiply
    253,603.13x = 404,394.75 × 404,394.75
  4. Step 4: Simplify right side
    253,603.13x = 163,535,113,827.56
  5. Step 5: Solve for x
    x = 163,535,113,827.56/253,603.13
  6. Step 6: Final answer
    x = 644,846.60

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.