Home / 256,743.08-354,278.20-142,003.50

Finding the Fourth Proportional to 256,743.08, 354,278.20 and 142,003.50

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Solution

The fourth proportional to 256,743.08, 354,278.20 and 142,003.50 is: 195,949.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,743.08 : 354,278.20 = 142,003.50 : x
  2. Step 2: Convert to fraction form
    256,743.08/354,278.20 = 142,003.50/x
  3. Step 3: Cross multiply
    256,743.08x = 354,278.20 × 142,003.50
  4. Step 4: Simplify right side
    256,743.08x = 50,308,744,373.70
  5. Step 5: Solve for x
    x = 50,308,744,373.70/256,743.08
  6. Step 6: Final answer
    x = 195,949.76

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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.