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Finding the Fourth Proportional to 329,515, 453,504.90 and 271,691.80

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Solution

The fourth proportional to 329,515, 453,504.90 and 271,691.80 is: 373,923.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,515 : 453,504.90 = 271,691.80 : x
  2. Step 2: Convert to fraction form
    329,515/453,504.90 = 271,691.80/x
  3. Step 3: Cross multiply
    329,515x = 453,504.90 × 271,691.80
  4. Step 4: Simplify right side
    329,515x = 123,213,562,589.82
  5. Step 5: Solve for x
    x = 123,213,562,589.82/329,515
  6. Step 6: Final answer
    x = 373,923.99

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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.