Home / 505,143.48-757,857.38-220,859.00

Finding the Fourth Proportional to 505,143.48, 757,857.38 and 220,859.00

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Solution

The fourth proportional to 505,143.48, 757,857.38 and 220,859.00 is: 331,350.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,143.48 : 757,857.38 = 220,859.00 : x
  2. Step 2: Convert to fraction form
    505,143.48/757,857.38 = 220,859.00/x
  3. Step 3: Cross multiply
    505,143.48x = 757,857.38 × 220,859.00
  4. Step 4: Simplify right side
    505,143.48x = 167,379,618,195.84
  5. Step 5: Solve for x
    x = 167,379,618,195.84/505,143.48
  6. Step 6: Final answer
    x = 331,350.65

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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.