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Finding the Fourth Proportional to 323,439.60, 446,043.92 and 255,618.61

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Solution

The fourth proportional to 323,439.60, 446,043.92 and 255,618.61 is: 352,514.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,439.60 : 446,043.92 = 255,618.61 : x
  2. Step 2: Convert to fraction form
    323,439.60/446,043.92 = 255,618.61/x
  3. Step 3: Cross multiply
    323,439.60x = 446,043.92 × 255,618.61
  4. Step 4: Simplify right side
    323,439.60x = 114,017,123,808.90
  5. Step 5: Solve for x
    x = 114,017,123,808.90/323,439.60
  6. Step 6: Final answer
    x = 352,514.42

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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.