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Finding the Fourth Proportional to 256,865.20, 385,297.80 and 182,069.80

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Solution

The fourth proportional to 256,865.20, 385,297.80 and 182,069.80 is: 273,104.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,865.20 : 385,297.80 = 182,069.80 : x
  2. Step 2: Convert to fraction form
    256,865.20/385,297.80 = 182,069.80/x
  3. Step 3: Cross multiply
    256,865.20x = 385,297.80 × 182,069.80
  4. Step 4: Simplify right side
    256,865.20x = 70,151,093,386.44
  5. Step 5: Solve for x
    x = 70,151,093,386.44/256,865.20
  6. Step 6: Final answer
    x = 273,104.70

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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.