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Finding the Fourth Proportional to 146,480.60, 220,190.70 and 136,080.20

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Solution

The fourth proportional to 146,480.60, 220,190.70 and 136,080.20 is: 204,556.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,480.60 : 220,190.70 = 136,080.20 : x
  2. Step 2: Convert to fraction form
    146,480.60/220,190.70 = 136,080.20/x
  3. Step 3: Cross multiply
    146,480.60x = 220,190.70 × 136,080.20
  4. Step 4: Simplify right side
    146,480.60x = 29,963,594,494.14
  5. Step 5: Solve for x
    x = 29,963,594,494.14/146,480.60
  6. Step 6: Final answer
    x = 204,556.74

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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.