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Finding the Fourth Proportional to 329,832, 455,168.40 and 178,929.60

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Solution

The fourth proportional to 329,832, 455,168.40 and 178,929.60 is: 246,922.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,832 : 455,168.40 = 178,929.60 : x
  2. Step 2: Convert to fraction form
    329,832/455,168.40 = 178,929.60/x
  3. Step 3: Cross multiply
    329,832x = 455,168.40 × 178,929.60
  4. Step 4: Simplify right side
    329,832x = 81,443,099,744.64
  5. Step 5: Solve for x
    x = 81,443,099,744.64/329,832
  6. Step 6: Final answer
    x = 246,922.98

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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.