Home / 330,023.76-455,441.04-179,120.40

Finding the Fourth Proportional to 330,023.76, 455,441.04 and 179,120.40

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Solution

The fourth proportional to 330,023.76, 455,441.04 and 179,120.40 is: 247,190.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,023.76 : 455,441.04 = 179,120.40 : x
  2. Step 2: Convert to fraction form
    330,023.76/455,441.04 = 179,120.40/x
  3. Step 3: Cross multiply
    330,023.76x = 455,441.04 × 179,120.40
  4. Step 4: Simplify right side
    330,023.76x = 81,578,781,261.22
  5. Step 5: Solve for x
    x = 81,578,781,261.22/330,023.76
  6. Step 6: Final answer
    x = 247,190.63

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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.