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Finding the Fourth Proportional to 255,286.80, 352,292.80 and 140,563.05

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Solution

The fourth proportional to 255,286.80, 352,292.80 and 140,563.05 is: 193,975.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,286.80 : 352,292.80 = 140,563.05 : x
  2. Step 2: Convert to fraction form
    255,286.80/352,292.80 = 140,563.05/x
  3. Step 3: Cross multiply
    255,286.80x = 352,292.80 × 140,563.05
  4. Step 4: Simplify right side
    255,286.80x = 49,519,350,461.04
  5. Step 5: Solve for x
    x = 49,519,350,461.04/255,286.80
  6. Step 6: Final answer
    x = 193,975.37

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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.