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Finding the Third Proportional to 133,078 and 288,539

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Solution

The third proportional to 133,078 and 288,539 is: 625,608.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,078 : 288,539 = 288,539 : x
  2. Step 2: Convert to fraction form
    133,078/288,539 = 288,539/x
  3. Step 3: Cross multiply
    133,078x = 288,539 × 288,539
  4. Step 4: Simplify right side
    133,078x = 83,254,754,521
  5. Step 5: Solve for x
    x = 83,254,754,521/133,078
  6. Step 6: Final answer
    x = 625,608.70

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.