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Finding the Third Proportional to 476.75 and 521.75

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Solution

The third proportional to 476.75 and 521.75 is: 571.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    476.75 : 521.75 = 521.75 : x
  2. Step 2: Convert to fraction form
    476.75/521.75 = 521.75/x
  3. Step 3: Cross multiply
    476.75x = 521.75 × 521.75
  4. Step 4: Simplify right side
    476.75x = 272,223.06
  5. Step 5: Solve for x
    x = 272,223.06/476.75
  6. Step 6: Final answer
    x = 571.00

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.