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Finding the Third Proportional to 466 and 621.50

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Solution

The third proportional to 466 and 621.50 is: 828.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    466 : 621.50 = 621.50 : x
  2. Step 2: Convert to fraction form
    466/621.50 = 621.50/x
  3. Step 3: Cross multiply
    466x = 621.50 × 621.50
  4. Step 4: Simplify right side
    466x = 386,262.25
  5. Step 5: Solve for x
    x = 386,262.25/466
  6. Step 6: Final answer
    x = 828.89

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.