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Finding the Fourth Proportional to 146,479.60, 220,189.20 and 136,079.20

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Solution

The fourth proportional to 146,479.60, 220,189.20 and 136,079.20 is: 204,555.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,479.60 : 220,189.20 = 136,079.20 : x
  2. Step 2: Convert to fraction form
    146,479.60/220,189.20 = 136,079.20/x
  3. Step 3: Cross multiply
    146,479.60x = 220,189.20 × 136,079.20
  4. Step 4: Simplify right side
    146,479.60x = 29,963,170,184.64
  5. Step 5: Solve for x
    x = 29,963,170,184.64/146,479.60
  6. Step 6: Final answer
    x = 204,555.24

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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.