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Finding the Fourth Proportional to 329,464.53, 494,009.55 and 129,676.64

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Solution

The fourth proportional to 329,464.53, 494,009.55 and 129,676.64 is: 194,441.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,464.53 : 494,009.55 = 129,676.64 : x
  2. Step 2: Convert to fraction form
    329,464.53/494,009.55 = 129,676.64/x
  3. Step 3: Cross multiply
    329,464.53x = 494,009.55 × 129,676.64
  4. Step 4: Simplify right side
    329,464.53x = 64,061,496,101.86
  5. Step 5: Solve for x
    x = 64,061,496,101.86/329,464.53
  6. Step 6: Final answer
    x = 194,441.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.