Home / 256,742.78-354,277.76-142,003.19

Finding the Fourth Proportional to 256,742.78, 354,277.76 and 142,003.19

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Solution

The fourth proportional to 256,742.78, 354,277.76 and 142,003.19 is: 195,949.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,742.78 : 354,277.76 = 142,003.19 : x
  2. Step 2: Convert to fraction form
    256,742.78/354,277.76 = 142,003.19/x
  3. Step 3: Cross multiply
    256,742.78x = 354,277.76 × 142,003.19
  4. Step 4: Simplify right side
    256,742.78x = 50,308,572,241.73
  5. Step 5: Solve for x
    x = 50,308,572,241.73/256,742.78
  6. Step 6: Final answer
    x = 195,949.32

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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.