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Finding the Fourth Proportional to 330,543.75, 456,150.78 and 179,640.75

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Solution

The fourth proportional to 330,543.75, 456,150.78 and 179,640.75 is: 247,904.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,543.75 : 456,150.78 = 179,640.75 : x
  2. Step 2: Convert to fraction form
    330,543.75/456,150.78 = 179,640.75/x
  3. Step 3: Cross multiply
    330,543.75x = 456,150.78 × 179,640.75
  4. Step 4: Simplify right side
    330,543.75x = 81,943,268,232.29
  5. Step 5: Solve for x
    x = 81,943,268,232.29/330,543.75
  6. Step 6: Final answer
    x = 247,904.46

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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.