Home / 256,938.16-385,405.11-200,825.43

Finding the Fourth Proportional to 256,938.16, 385,405.11 and 200,825.43

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Solution

The fourth proportional to 256,938.16, 385,405.11 and 200,825.43 is: 301,236.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,938.16 : 385,405.11 = 200,825.43 : x
  2. Step 2: Convert to fraction form
    256,938.16/385,405.11 = 200,825.43/x
  3. Step 3: Cross multiply
    256,938.16x = 385,405.11 × 200,825.43
  4. Step 4: Simplify right side
    256,938.16x = 77,399,147,632.12
  5. Step 5: Solve for x
    x = 77,399,147,632.12/256,938.16
  6. Step 6: Final answer
    x = 301,236.48

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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.