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Finding the Fourth Proportional to 505,136.76, 757,721.52 and 265,190.04

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Solution

The fourth proportional to 505,136.76, 757,721.52 and 265,190.04 is: 397,793.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,136.76 : 757,721.52 = 265,190.04 : x
  2. Step 2: Convert to fraction form
    505,136.76/757,721.52 = 265,190.04/x
  3. Step 3: Cross multiply
    505,136.76x = 757,721.52 × 265,190.04
  4. Step 4: Simplify right side
    505,136.76x = 200,940,200,197.66
  5. Step 5: Solve for x
    x = 200,940,200,197.66/505,136.76
  6. Step 6: Final answer
    x = 397,793.66

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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.