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Finding the Fourth Proportional to 188,860.60, 283,290.90 and 104,879.80

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Solution

The fourth proportional to 188,860.60, 283,290.90 and 104,879.80 is: 157,319.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,860.60 : 283,290.90 = 104,879.80 : x
  2. Step 2: Convert to fraction form
    188,860.60/283,290.90 = 104,879.80/x
  3. Step 3: Cross multiply
    188,860.60x = 283,290.90 × 104,879.80
  4. Step 4: Simplify right side
    188,860.60x = 29,711,492,933.82
  5. Step 5: Solve for x
    x = 29,711,492,933.82/188,860.60
  6. Step 6: Final answer
    x = 157,319.70

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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.