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Finding the Fourth Proportional to 329,505.70, 494,258.56 and 285,000.26

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Solution

The fourth proportional to 329,505.70, 494,258.56 and 285,000.26 is: 427,500.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,505.70 : 494,258.56 = 285,000.26 : x
  2. Step 2: Convert to fraction form
    329,505.70/494,258.56 = 285,000.26/x
  3. Step 3: Cross multiply
    329,505.70x = 494,258.56 × 285,000.26
  4. Step 4: Simplify right side
    329,505.70x = 140,863,818,107.23
  5. Step 5: Solve for x
    x = 140,863,818,107.23/329,505.70
  6. Step 6: Final answer
    x = 427,500.40

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Similar ratio
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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.