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Finding the Fourth Proportional to 254,903.38, 381,523.39 and 187,417.53

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Solution

The fourth proportional to 254,903.38, 381,523.39 and 187,417.53 is: 280,514.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,903.38 : 381,523.39 = 187,417.53 : x
  2. Step 2: Convert to fraction form
    254,903.38/381,523.39 = 187,417.53/x
  3. Step 3: Cross multiply
    254,903.38x = 381,523.39 × 187,417.53
  4. Step 4: Simplify right side
    254,903.38x = 71,504,170,922.48
  5. Step 5: Solve for x
    x = 71,504,170,922.48/254,903.38
  6. Step 6: Final answer
    x = 280,514.80

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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.