Home / 330,311.93-455,862.42-185,142.38

Finding the Fourth Proportional to 330,311.93, 455,862.42 and 185,142.38

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Solution

The fourth proportional to 330,311.93, 455,862.42 and 185,142.38 is: 255,514.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,311.93 : 455,862.42 = 185,142.38 : x
  2. Step 2: Convert to fraction form
    330,311.93/455,862.42 = 185,142.38/x
  3. Step 3: Cross multiply
    330,311.93x = 455,862.42 × 185,142.38
  4. Step 4: Simplify right side
    330,311.93x = 84,399,451,112.05
  5. Step 5: Solve for x
    x = 84,399,451,112.05/330,311.93
  6. Step 6: Final answer
    x = 255,514.39

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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.