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Finding the Fourth Proportional to 330,372.96, 455,981.04 and 196,211.04

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Solution

The fourth proportional to 330,372.96, 455,981.04 and 196,211.04 is: 270,810.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,372.96 : 455,981.04 = 196,211.04 : x
  2. Step 2: Convert to fraction form
    330,372.96/455,981.04 = 196,211.04/x
  3. Step 3: Cross multiply
    330,372.96x = 455,981.04 × 196,211.04
  4. Step 4: Simplify right side
    330,372.96x = 89,468,514,078.68
  5. Step 5: Solve for x
    x = 89,468,514,078.68/330,372.96
  6. Step 6: Final answer
    x = 270,810.64

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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.