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Finding the Fourth Proportional to 330,120, 455,573.92 and 179,216.96

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Solution

The fourth proportional to 330,120, 455,573.92 and 179,216.96 is: 247,323.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,120 : 455,573.92 = 179,216.96 : x
  2. Step 2: Convert to fraction form
    330,120/455,573.92 = 179,216.96/x
  3. Step 3: Cross multiply
    330,120x = 455,573.92 × 179,216.96
  4. Step 4: Simplify right side
    330,120x = 81,646,572,997.68
  5. Step 5: Solve for x
    x = 81,646,572,997.68/330,120
  6. Step 6: Final answer
    x = 247,323.92

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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.