Home / 329,831.56-455,168.42-178,928.56

Finding the Fourth Proportional to 329,831.56, 455,168.42 and 178,928.56

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Solution

The fourth proportional to 329,831.56, 455,168.42 and 178,928.56 is: 246,921.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,831.56 : 455,168.42 = 178,928.56 : x
  2. Step 2: Convert to fraction form
    329,831.56/455,168.42 = 178,928.56/x
  3. Step 3: Cross multiply
    329,831.56x = 455,168.42 × 178,928.56
  4. Step 4: Simplify right side
    329,831.56x = 81,442,629,948.08
  5. Step 5: Solve for x
    x = 81,442,629,948.08/329,831.56
  6. Step 6: Final answer
    x = 246,921.88

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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.