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Finding the Third Proportional to 256,250.75 and 374,499.75

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Solution

The third proportional to 256,250.75 and 374,499.75 is: 547,315.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,250.75 : 374,499.75 = 374,499.75 : x
  2. Step 2: Convert to fraction form
    256,250.75/374,499.75 = 374,499.75/x
  3. Step 3: Cross multiply
    256,250.75x = 374,499.75 × 374,499.75
  4. Step 4: Simplify right side
    256,250.75x = 140,250,062,750.06
  5. Step 5: Solve for x
    x = 140,250,062,750.06/256,250.75
  6. Step 6: Final answer
    x = 547,315.72

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.