Home / 256,185.15-384,366.72-114,131.28

Finding the Fourth Proportional to 256,185.15, 384,366.72 and 114,131.28

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Solution

The fourth proportional to 256,185.15, 384,366.72 and 114,131.28 is: 171,236.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,185.15 : 384,366.72 = 114,131.28 : x
  2. Step 2: Convert to fraction form
    256,185.15/384,366.72 = 114,131.28/x
  3. Step 3: Cross multiply
    256,185.15x = 384,366.72 × 114,131.28
  4. Step 4: Simplify right side
    256,185.15x = 43,868,265,743.00
  5. Step 5: Solve for x
    x = 43,868,265,743.00/256,185.15
  6. Step 6: Final answer
    x = 171,236.57

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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.