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Finding the Fourth Proportional to 274,120.80, 411,872.40 and 174,328.80

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Solution

The fourth proportional to 274,120.80, 411,872.40 and 174,328.80 is: 261,932.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,120.80 : 411,872.40 = 174,328.80 : x
  2. Step 2: Convert to fraction form
    274,120.80/411,872.40 = 174,328.80/x
  3. Step 3: Cross multiply
    274,120.80x = 411,872.40 × 174,328.80
  4. Step 4: Simplify right side
    274,120.80x = 71,801,221,245.12
  5. Step 5: Solve for x
    x = 71,801,221,245.12/274,120.80
  6. Step 6: Final answer
    x = 261,932.77

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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.