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Finding the Fourth Proportional to 254,185.72, 350,763.65 and 145,286.79

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Solution

The fourth proportional to 254,185.72, 350,763.65 and 145,286.79 is: 200,488.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,185.72 : 350,763.65 = 145,286.79 : x
  2. Step 2: Convert to fraction form
    254,185.72/350,763.65 = 145,286.79/x
  3. Step 3: Cross multiply
    254,185.72x = 350,763.65 × 145,286.79
  4. Step 4: Simplify right side
    254,185.72x = 50,961,325,120.40
  5. Step 5: Solve for x
    x = 50,961,325,120.40/254,185.72
  6. Step 6: Final answer
    x = 200,488.55

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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.