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Finding the Third Proportional to 557.63 and 1,219.03

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Solution

The third proportional to 557.63 and 1,219.03 is: 2,664.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    557.63 : 1,219.03 = 1,219.03 : x
  2. Step 2: Convert to fraction form
    557.63/1,219.03 = 1,219.03/x
  3. Step 3: Cross multiply
    557.63x = 1,219.03 × 1,219.03
  4. Step 4: Simplify right side
    557.63x = 1,486,037.19
  5. Step 5: Solve for x
    x = 1,486,037.19/557.63
  6. Step 6: Final answer
    x = 2,664.94

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.