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Finding the Fourth Proportional to 330,288.57, 455,800.56 and 179,385.57

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Solution

The fourth proportional to 330,288.57, 455,800.56 and 179,385.57 is: 247,553.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,288.57 : 455,800.56 = 179,385.57 : x
  2. Step 2: Convert to fraction form
    330,288.57/455,800.56 = 179,385.57/x
  3. Step 3: Cross multiply
    330,288.57x = 455,800.56 × 179,385.57
  4. Step 4: Simplify right side
    330,288.57x = 81,764,043,261.92
  5. Step 5: Solve for x
    x = 81,764,043,261.92/330,288.57
  6. Step 6: Final answer
    x = 247,553.35

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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.