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Finding the Third Proportional to 285,113.25 and 398,603.25

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Solution

The third proportional to 285,113.25 and 398,603.25 is: 557,268.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,113.25 : 398,603.25 = 398,603.25 : x
  2. Step 2: Convert to fraction form
    285,113.25/398,603.25 = 398,603.25/x
  3. Step 3: Cross multiply
    285,113.25x = 398,603.25 × 398,603.25
  4. Step 4: Simplify right side
    285,113.25x = 158,884,550,910.56
  5. Step 5: Solve for x
    x = 158,884,550,910.56/285,113.25
  6. Step 6: Final answer
    x = 557,268.21

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.