Home / 217,972.35-300,904.03-145,497.70

Finding the Fourth Proportional to 217,972.35, 300,904.03 and 145,497.70

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Solution

The fourth proportional to 217,972.35, 300,904.03 and 145,497.70 is: 200,855.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,972.35 : 300,904.03 = 145,497.70 : x
  2. Step 2: Convert to fraction form
    217,972.35/300,904.03 = 145,497.70/x
  3. Step 3: Cross multiply
    217,972.35x = 300,904.03 × 145,497.70
  4. Step 4: Simplify right side
    217,972.35x = 43,780,844,843.73
  5. Step 5: Solve for x
    x = 43,780,844,843.73/217,972.35
  6. Step 6: Final answer
    x = 200,855.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.