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Finding the Fourth Proportional to 330,057.84, 455,481.32 and 186,845.58

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Solution

The fourth proportional to 330,057.84, 455,481.32 and 186,845.58 is: 257,847.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,057.84 : 455,481.32 = 186,845.58 : x
  2. Step 2: Convert to fraction form
    330,057.84/455,481.32 = 186,845.58/x
  3. Step 3: Cross multiply
    330,057.84x = 455,481.32 × 186,845.58
  4. Step 4: Simplify right side
    330,057.84x = 85,104,671,414.57
  5. Step 5: Solve for x
    x = 85,104,671,414.57/330,057.84
  6. Step 6: Final answer
    x = 257,847.75

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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.