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Finding the Third Proportional to 305,256 and 663,030.75

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Solution

The third proportional to 305,256 and 663,030.75 is: 1,440,134.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,256 : 663,030.75 = 663,030.75 : x
  2. Step 2: Convert to fraction form
    305,256/663,030.75 = 663,030.75/x
  3. Step 3: Cross multiply
    305,256x = 663,030.75 × 663,030.75
  4. Step 4: Simplify right side
    305,256x = 439,609,775,445.56
  5. Step 5: Solve for x
    x = 439,609,775,445.56/305,256
  6. Step 6: Final answer
    x = 1,440,134.76

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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.