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Finding the Fourth Proportional to 188,999.80, 283,499.70 and 122,077.60

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Solution

The fourth proportional to 188,999.80, 283,499.70 and 122,077.60 is: 183,116.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,999.80 : 283,499.70 = 122,077.60 : x
  2. Step 2: Convert to fraction form
    188,999.80/283,499.70 = 122,077.60/x
  3. Step 3: Cross multiply
    188,999.80x = 283,499.70 × 122,077.60
  4. Step 4: Simplify right side
    188,999.80x = 34,608,962,976.72
  5. Step 5: Solve for x
    x = 34,608,962,976.72/188,999.80
  6. Step 6: Final answer
    x = 183,116.40

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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.