Home / 330,291.45-455,786.97-187,052.54

Finding the Fourth Proportional to 330,291.45, 455,786.97 and 187,052.54

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Solution

The fourth proportional to 330,291.45, 455,786.97 and 187,052.54 is: 258,123.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,291.45 : 455,786.97 = 187,052.54 : x
  2. Step 2: Convert to fraction form
    330,291.45/455,786.97 = 187,052.54/x
  3. Step 3: Cross multiply
    330,291.45x = 455,786.97 × 187,052.54
  4. Step 4: Simplify right side
    330,291.45x = 85,256,108,158.47
  5. Step 5: Solve for x
    x = 85,256,108,158.47/330,291.45
  6. Step 6: Final answer
    x = 258,123.87

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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.