Home / 256,891.41-354,505.05-142,163.35

Finding the Fourth Proportional to 256,891.41, 354,505.05 and 142,163.35

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Solution

The fourth proportional to 256,891.41, 354,505.05 and 142,163.35 is: 196,182.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,891.41 : 354,505.05 = 142,163.35 : x
  2. Step 2: Convert to fraction form
    256,891.41/354,505.05 = 142,163.35/x
  3. Step 3: Cross multiply
    256,891.41x = 354,505.05 × 142,163.35
  4. Step 4: Simplify right side
    256,891.41x = 50,397,626,341.25
  5. Step 5: Solve for x
    x = 50,397,626,341.25/256,891.41
  6. Step 6: Final answer
    x = 196,182.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.