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Finding the Third Proportional to 432,138.75 and 654,171

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Solution

The third proportional to 432,138.75 and 654,171 is: 990,283.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,138.75 : 654,171 = 654,171 : x
  2. Step 2: Convert to fraction form
    432,138.75/654,171 = 654,171/x
  3. Step 3: Cross multiply
    432,138.75x = 654,171 × 654,171
  4. Step 4: Simplify right side
    432,138.75x = 427,939,697,241
  5. Step 5: Solve for x
    x = 427,939,697,241/432,138.75
  6. Step 6: Final answer
    x = 990,283.09

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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.