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Finding the Fourth Proportional to 256,447.75, 353,879.36 and 141,725.02

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Solution

The fourth proportional to 256,447.75, 353,879.36 and 141,725.02 is: 195,570.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,447.75 : 353,879.36 = 141,725.02 : x
  2. Step 2: Convert to fraction form
    256,447.75/353,879.36 = 141,725.02/x
  3. Step 3: Cross multiply
    256,447.75x = 353,879.36 × 141,725.02
  4. Step 4: Simplify right side
    256,447.75x = 50,153,559,373.59
  5. Step 5: Solve for x
    x = 50,153,559,373.59/256,447.75
  6. Step 6: Final answer
    x = 195,570.28

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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.