Home / 505,231.18-757,190.34-205,362.49

Finding the Fourth Proportional to 505,231.18, 757,190.34 and 205,362.49

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Solution

The fourth proportional to 505,231.18, 757,190.34 and 205,362.49 is: 307,776.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,231.18 : 757,190.34 = 205,362.49 : x
  2. Step 2: Convert to fraction form
    505,231.18/757,190.34 = 205,362.49/x
  3. Step 3: Cross multiply
    505,231.18x = 757,190.34 × 205,362.49
  4. Step 4: Simplify right side
    505,231.18x = 155,498,489,840.40
  5. Step 5: Solve for x
    x = 155,498,489,840.40/505,231.18
  6. Step 6: Final answer
    x = 307,776.91

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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.