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Finding the Fourth Proportional to 329,823.46, 455,157.26 and 178,920.46

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Solution

The fourth proportional to 329,823.46, 455,157.26 and 178,920.46 is: 246,910.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,823.46 : 455,157.26 = 178,920.46 : x
  2. Step 2: Convert to fraction form
    329,823.46/455,157.26 = 178,920.46/x
  3. Step 3: Cross multiply
    329,823.46x = 455,157.26 × 178,920.46
  4. Step 4: Simplify right side
    329,823.46x = 81,436,946,331.54
  5. Step 5: Solve for x
    x = 81,436,946,331.54/329,823.46
  6. Step 6: Final answer
    x = 246,910.71

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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.