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Finding the Third Proportional to 303 and 515.50

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Solution

The third proportional to 303 and 515.50 is: 877.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    303 : 515.50 = 515.50 : x
  2. Step 2: Convert to fraction form
    303/515.50 = 515.50/x
  3. Step 3: Cross multiply
    303x = 515.50 × 515.50
  4. Step 4: Simplify right side
    303x = 265,740.25
  5. Step 5: Solve for x
    x = 265,740.25/303
  6. Step 6: Final answer
    x = 877.03

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Why These Related Problems?

These problems maintain the same ratio (1.70) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.