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Finding the Fourth Proportional to 201,995.70, 302,993.55 and 192,810.30

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Solution

The fourth proportional to 201,995.70, 302,993.55 and 192,810.30 is: 289,215.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,995.70 : 302,993.55 = 192,810.30 : x
  2. Step 2: Convert to fraction form
    201,995.70/302,993.55 = 192,810.30/x
  3. Step 3: Cross multiply
    201,995.70x = 302,993.55 × 192,810.30
  4. Step 4: Simplify right side
    201,995.70x = 58,420,277,273.57
  5. Step 5: Solve for x
    x = 58,420,277,273.57/201,995.70
  6. Step 6: Final answer
    x = 289,215.45

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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.