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Finding the Fourth Proportional to 179,429.60, 269,727.60 and 127,200.80

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Solution

The fourth proportional to 179,429.60, 269,727.60 and 127,200.80 is: 191,214.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,429.60 : 269,727.60 = 127,200.80 : x
  2. Step 2: Convert to fraction form
    179,429.60/269,727.60 = 127,200.80/x
  3. Step 3: Cross multiply
    179,429.60x = 269,727.60 × 127,200.80
  4. Step 4: Simplify right side
    179,429.60x = 34,309,566,502.08
  5. Step 5: Solve for x
    x = 34,309,566,502.08/179,429.60
  6. Step 6: Final answer
    x = 191,214.64

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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.