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Finding the Fourth Proportional to 304,321.76, 419,915.04 and 191,297.60

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Solution

The fourth proportional to 304,321.76, 419,915.04 and 191,297.60 is: 263,959.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,321.76 : 419,915.04 = 191,297.60 : x
  2. Step 2: Convert to fraction form
    304,321.76/419,915.04 = 191,297.60/x
  3. Step 3: Cross multiply
    304,321.76x = 419,915.04 × 191,297.60
  4. Step 4: Simplify right side
    304,321.76x = 80,328,739,355.90
  5. Step 5: Solve for x
    x = 80,328,739,355.90/304,321.76
  6. Step 6: Final answer
    x = 263,959.89

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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.