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Finding the Fourth Proportional to 146,512.80, 219,769.20 and 144,957.60

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Solution

The fourth proportional to 146,512.80, 219,769.20 and 144,957.60 is: 217,436.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,512.80 : 219,769.20 = 144,957.60 : x
  2. Step 2: Convert to fraction form
    146,512.80/219,769.20 = 144,957.60/x
  3. Step 3: Cross multiply
    146,512.80x = 219,769.20 × 144,957.60
  4. Step 4: Simplify right side
    146,512.80x = 31,857,215,785.92
  5. Step 5: Solve for x
    x = 31,857,215,785.92/146,512.80
  6. Step 6: Final answer
    x = 217,436.40

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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.