Home / 256,895.34-354,508.28-142,178.79

Finding the Fourth Proportional to 256,895.34, 354,508.28 and 142,178.79

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Solution

The fourth proportional to 256,895.34, 354,508.28 and 142,178.79 is: 196,202.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,895.34 : 354,508.28 = 142,178.79 : x
  2. Step 2: Convert to fraction form
    256,895.34/354,508.28 = 142,178.79/x
  3. Step 3: Cross multiply
    256,895.34x = 354,508.28 × 142,178.79
  4. Step 4: Simplify right side
    256,895.34x = 50,403,557,584.49
  5. Step 5: Solve for x
    x = 50,403,557,584.49/256,895.34
  6. Step 6: Final answer
    x = 196,202.69

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1.5x scale

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.