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Finding the Third Proportional to 211,237.88 and 318,654

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Solution

The third proportional to 211,237.88 and 318,654 is: 480,692.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,237.88 : 318,654 = 318,654 : x
  2. Step 2: Convert to fraction form
    211,237.88/318,654 = 318,654/x
  3. Step 3: Cross multiply
    211,237.88x = 318,654 × 318,654
  4. Step 4: Simplify right side
    211,237.88x = 101,540,371,716
  5. Step 5: Solve for x
    x = 101,540,371,716/211,237.88
  6. Step 6: Final answer
    x = 480,692.07

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.