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Finding the Third Proportional to 275,559.75 and 390,024.75

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Solution

The third proportional to 275,559.75 and 390,024.75 is: 552,037.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,559.75 : 390,024.75 = 390,024.75 : x
  2. Step 2: Convert to fraction form
    275,559.75/390,024.75 = 390,024.75/x
  3. Step 3: Cross multiply
    275,559.75x = 390,024.75 × 390,024.75
  4. Step 4: Simplify right side
    275,559.75x = 152,119,305,612.56
  5. Step 5: Solve for x
    x = 152,119,305,612.56/275,559.75
  6. Step 6: Final answer
    x = 552,037.46

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.