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Finding the Fourth Proportional to 195,798.57, 270,149.93 and 112,991.57

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Solution

The fourth proportional to 195,798.57, 270,149.93 and 112,991.57 is: 155,898.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,798.57 : 270,149.93 = 112,991.57 : x
  2. Step 2: Convert to fraction form
    195,798.57/270,149.93 = 112,991.57/x
  3. Step 3: Cross multiply
    195,798.57x = 270,149.93 × 112,991.57
  4. Step 4: Simplify right side
    195,798.57x = 30,524,664,247.16
  5. Step 5: Solve for x
    x = 30,524,664,247.16/195,798.57
  6. Step 6: Final answer
    x = 155,898.30

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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.