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Finding the Fourth Proportional to 329,714.60, 494,474.70 and 129,968.60

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Solution

The fourth proportional to 329,714.60, 494,474.70 and 129,968.60 is: 194,914.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,714.60 : 494,474.70 = 129,968.60 : x
  2. Step 2: Convert to fraction form
    329,714.60/494,474.70 = 129,968.60/x
  3. Step 3: Cross multiply
    329,714.60x = 494,474.70 × 129,968.60
  4. Step 4: Simplify right side
    329,714.60x = 64,266,184,494.42
  5. Step 5: Solve for x
    x = 64,266,184,494.42/329,714.60
  6. Step 6: Final answer
    x = 194,914.59

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1.5x scale

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.