Home / 330,023.28-455,432.44-179,120.40

Finding the Fourth Proportional to 330,023.28, 455,432.44 and 179,120.40

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Solution

The fourth proportional to 330,023.28, 455,432.44 and 179,120.40 is: 247,186.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,023.28 : 455,432.44 = 179,120.40 : x
  2. Step 2: Convert to fraction form
    330,023.28/455,432.44 = 179,120.40/x
  3. Step 3: Cross multiply
    330,023.28x = 455,432.44 × 179,120.40
  4. Step 4: Simplify right side
    330,023.28x = 81,577,240,825.78
  5. Step 5: Solve for x
    x = 81,577,240,825.78/330,023.28
  6. Step 6: Final answer
    x = 247,186.32

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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.