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Finding the Fourth Proportional to 179,971.70, 269,957.55 and 144,979.70

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Solution

The fourth proportional to 179,971.70, 269,957.55 and 144,979.70 is: 217,469.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,971.70 : 269,957.55 = 144,979.70 : x
  2. Step 2: Convert to fraction form
    179,971.70/269,957.55 = 144,979.70/x
  3. Step 3: Cross multiply
    179,971.70x = 269,957.55 × 144,979.70
  4. Step 4: Simplify right side
    179,971.70x = 39,138,364,611.74
  5. Step 5: Solve for x
    x = 39,138,364,611.74/179,971.70
  6. Step 6: Final answer
    x = 217,469.55

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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.