Home / 330,288.45-455,782.83-187,049.54

Finding the Fourth Proportional to 330,288.45, 455,782.83 and 187,049.54

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Solution

The fourth proportional to 330,288.45, 455,782.83 and 187,049.54 is: 258,119.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,288.45 : 455,782.83 = 187,049.54 : x
  2. Step 2: Convert to fraction form
    330,288.45/455,782.83 = 187,049.54/x
  3. Step 3: Cross multiply
    330,288.45x = 455,782.83 × 187,049.54
  4. Step 4: Simplify right side
    330,288.45x = 85,253,966,412.48
  5. Step 5: Solve for x
    x = 85,253,966,412.48/330,288.45
  6. Step 6: Final answer
    x = 258,119.73

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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.