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Finding the Third Proportional to 216.56 and 332.53

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Solution

The third proportional to 216.56 and 332.53 is: 510.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    216.56 : 332.53 = 332.53 : x
  2. Step 2: Convert to fraction form
    216.56/332.53 = 332.53/x
  3. Step 3: Cross multiply
    216.56x = 332.53 × 332.53
  4. Step 4: Simplify right side
    216.56x = 110,577.03
  5. Step 5: Solve for x
    x = 110,577.03/216.56
  6. Step 6: Final answer
    x = 510.60

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.