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Finding the Fourth Proportional to 330,367.72, 455,943.90 and 185,187.44

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Solution

The fourth proportional to 330,367.72, 455,943.90 and 185,187.44 is: 255,579.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,367.72 : 455,943.90 = 185,187.44 : x
  2. Step 2: Convert to fraction form
    330,367.72/455,943.90 = 185,187.44/x
  3. Step 3: Cross multiply
    330,367.72x = 455,943.90 × 185,187.44
  4. Step 4: Simplify right side
    330,367.72x = 84,435,083,624.62
  5. Step 5: Solve for x
    x = 84,435,083,624.62/330,367.72
  6. Step 6: Final answer
    x = 255,579.10

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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.