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Finding the Third Proportional to 200,783 and 310,894.50

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Solution

The third proportional to 200,783 and 310,894.50 is: 481,392.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,783 : 310,894.50 = 310,894.50 : x
  2. Step 2: Convert to fraction form
    200,783/310,894.50 = 310,894.50/x
  3. Step 3: Cross multiply
    200,783x = 310,894.50 × 310,894.50
  4. Step 4: Simplify right side
    200,783x = 96,655,390,130.25
  5. Step 5: Solve for x
    x = 96,655,390,130.25/200,783
  6. Step 6: Final answer
    x = 481,392.30

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.