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Finding the Third Proportional to 722.81 and 955.13

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Solution

The third proportional to 722.81 and 955.13 is: 1,262.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    722.81 : 955.13 = 955.13 : x
  2. Step 2: Convert to fraction form
    722.81/955.13 = 955.13/x
  3. Step 3: Cross multiply
    722.81x = 955.13 × 955.13
  4. Step 4: Simplify right side
    722.81x = 912,263.77
  5. Step 5: Solve for x
    x = 912,263.77/722.81
  6. Step 6: Final answer
    x = 1,262.10

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.