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Finding the Third Proportional to 534.56 and 1,139.81

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Solution

The third proportional to 534.56 and 1,139.81 is: 2,430.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.56 : 1,139.81 = 1,139.81 : x
  2. Step 2: Convert to fraction form
    534.56/1,139.81 = 1,139.81/x
  3. Step 3: Cross multiply
    534.56x = 1,139.81 × 1,139.81
  4. Step 4: Simplify right side
    534.56x = 1,299,172.54
  5. Step 5: Solve for x
    x = 1,299,172.54/534.56
  6. Step 6: Final answer
    x = 2,430.35

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.