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Finding the Fourth Proportional to 329,755.74, 494,301.30 and 129,998.80

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Solution

The fourth proportional to 329,755.74, 494,301.30 and 129,998.80 is: 194,867.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,755.74 : 494,301.30 = 129,998.80 : x
  2. Step 2: Convert to fraction form
    329,755.74/494,301.30 = 129,998.80/x
  3. Step 3: Cross multiply
    329,755.74x = 494,301.30 × 129,998.80
  4. Step 4: Simplify right side
    329,755.74x = 64,258,575,838.44
  5. Step 5: Solve for x
    x = 64,258,575,838.44/329,755.74
  6. Step 6: Final answer
    x = 194,867.19

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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.