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Finding the Third Proportional to 533.46 and 783.11

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Solution

The third proportional to 533.46 and 783.11 is: 1,149.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.46 : 783.11 = 783.11 : x
  2. Step 2: Convert to fraction form
    533.46/783.11 = 783.11/x
  3. Step 3: Cross multiply
    533.46x = 783.11 × 783.11
  4. Step 4: Simplify right side
    533.46x = 613,254.18
  5. Step 5: Solve for x
    x = 613,254.18/533.46
  6. Step 6: Final answer
    x = 1,149.58

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.