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Finding the Fourth Proportional to 146,685.60, 220,498.20 and 136,285.20

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Solution

The fourth proportional to 146,685.60, 220,498.20 and 136,285.20 is: 204,864.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,685.60 : 220,498.20 = 136,285.20 : x
  2. Step 2: Convert to fraction form
    146,685.60/220,498.20 = 136,285.20/x
  3. Step 3: Cross multiply
    146,685.60x = 220,498.20 × 136,285.20
  4. Step 4: Simplify right side
    146,685.60x = 30,050,641,286.64
  5. Step 5: Solve for x
    x = 30,050,641,286.64/146,685.60
  6. Step 6: Final answer
    x = 204,864.29

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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.