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Finding the Third Proportional to 290,343.75 and 626,610

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Solution

The third proportional to 290,343.75 and 626,610 is: 1,352,328.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,343.75 : 626,610 = 626,610 : x
  2. Step 2: Convert to fraction form
    290,343.75/626,610 = 626,610/x
  3. Step 3: Cross multiply
    290,343.75x = 626,610 × 626,610
  4. Step 4: Simplify right side
    290,343.75x = 392,640,092,100
  5. Step 5: Solve for x
    x = 392,640,092,100/290,343.75
  6. Step 6: Final answer
    x = 1,352,328.38

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.