Home / 308,819.60-462,883.80-131,296.40

Finding the Fourth Proportional to 308,819.60, 462,883.80 and 131,296.40

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Solution

The fourth proportional to 308,819.60, 462,883.80 and 131,296.40 is: 196,797.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,819.60 : 462,883.80 = 131,296.40 : x
  2. Step 2: Convert to fraction form
    308,819.60/462,883.80 = 131,296.40/x
  3. Step 3: Cross multiply
    308,819.60x = 462,883.80 × 131,296.40
  4. Step 4: Simplify right side
    308,819.60x = 60,774,976,558.32
  5. Step 5: Solve for x
    x = 60,774,976,558.32/308,819.60
  6. Step 6: Final answer
    x = 196,797.67

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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.