Home / 256,772.28-354,339.12-142,047.96

Finding the Fourth Proportional to 256,772.28, 354,339.12 and 142,047.96

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Solution

The fourth proportional to 256,772.28, 354,339.12 and 142,047.96 is: 196,022.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,772.28 : 354,339.12 = 142,047.96 : x
  2. Step 2: Convert to fraction form
    256,772.28/354,339.12 = 142,047.96/x
  3. Step 3: Cross multiply
    256,772.28x = 354,339.12 × 142,047.96
  4. Step 4: Simplify right side
    256,772.28x = 50,333,149,144.20
  5. Step 5: Solve for x
    x = 50,333,149,144.20/256,772.28
  6. Step 6: Final answer
    x = 196,022.52

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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.