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Finding the Fourth Proportional to 179,809.20, 269,713.80 and 91,335.60

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Solution

The fourth proportional to 179,809.20, 269,713.80 and 91,335.60 is: 137,003.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,809.20 : 269,713.80 = 91,335.60 : x
  2. Step 2: Convert to fraction form
    179,809.20/269,713.80 = 91,335.60/x
  3. Step 3: Cross multiply
    179,809.20x = 269,713.80 × 91,335.60
  4. Step 4: Simplify right side
    179,809.20x = 24,634,471,751.28
  5. Step 5: Solve for x
    x = 24,634,471,751.28/179,809.20
  6. Step 6: Final answer
    x = 137,003.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.