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Finding the Third Proportional to 245.11 and 524.39

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Solution

The third proportional to 245.11 and 524.39 is: 1,121.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    245.11 : 524.39 = 524.39 : x
  2. Step 2: Convert to fraction form
    245.11/524.39 = 524.39/x
  3. Step 3: Cross multiply
    245.11x = 524.39 × 524.39
  4. Step 4: Simplify right side
    245.11x = 274,985.53
  5. Step 5: Solve for x
    x = 274,985.53/245.11
  6. Step 6: Final answer
    x = 1,121.89

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.