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Finding the Third Proportional to 504 and 1,115.50

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Solution

The third proportional to 504 and 1,115.50 is: 2,468.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    504 : 1,115.50 = 1,115.50 : x
  2. Step 2: Convert to fraction form
    504/1,115.50 = 1,115.50/x
  3. Step 3: Cross multiply
    504x = 1,115.50 × 1,115.50
  4. Step 4: Simplify right side
    504x = 1,244,340.25
  5. Step 5: Solve for x
    x = 1,244,340.25/504
  6. Step 6: Final answer
    x = 2,468.93

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.