Home / 256,749.09-385,214.85-114,581.40

Finding the Fourth Proportional to 256,749.09, 385,214.85 and 114,581.40

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Solution

The fourth proportional to 256,749.09, 385,214.85 and 114,581.40 is: 171,912.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,749.09 : 385,214.85 = 114,581.40 : x
  2. Step 2: Convert to fraction form
    256,749.09/385,214.85 = 114,581.40/x
  3. Step 3: Cross multiply
    256,749.09x = 385,214.85 × 114,581.40
  4. Step 4: Simplify right side
    256,749.09x = 44,138,456,813.79
  5. Step 5: Solve for x
    x = 44,138,456,813.79/256,749.09
  6. Step 6: Final answer
    x = 171,912.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.