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Finding the Fourth Proportional to 188,811.60, 283,217.40 and 104,830.80

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Solution

The fourth proportional to 188,811.60, 283,217.40 and 104,830.80 is: 157,246.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,811.60 : 283,217.40 = 104,830.80 : x
  2. Step 2: Convert to fraction form
    188,811.60/283,217.40 = 104,830.80/x
  3. Step 3: Cross multiply
    188,811.60x = 283,217.40 × 104,830.80
  4. Step 4: Simplify right side
    188,811.60x = 29,689,906,615.92
  5. Step 5: Solve for x
    x = 29,689,906,615.92/188,811.60
  6. Step 6: Final answer
    x = 157,246.20

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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.