Home / 205,899.60-308,849.40-196,276.80

Finding the Fourth Proportional to 205,899.60, 308,849.40 and 196,276.80

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Solution

The fourth proportional to 205,899.60, 308,849.40 and 196,276.80 is: 294,415.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,899.60 : 308,849.40 = 196,276.80 : x
  2. Step 2: Convert to fraction form
    205,899.60/308,849.40 = 196,276.80/x
  3. Step 3: Cross multiply
    205,899.60x = 308,849.40 × 196,276.80
  4. Step 4: Simplify right side
    205,899.60x = 60,619,971,913.92
  5. Step 5: Solve for x
    x = 60,619,971,913.92/205,899.60
  6. Step 6: Final answer
    x = 294,415.20

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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.