Home / 205,183.20-307,774.80-57,439.20

Finding the Fourth Proportional to 205,183.20, 307,774.80 and 57,439.20

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Solution

The fourth proportional to 205,183.20, 307,774.80 and 57,439.20 is: 86,158.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,183.20 : 307,774.80 = 57,439.20 : x
  2. Step 2: Convert to fraction form
    205,183.20/307,774.80 = 57,439.20/x
  3. Step 3: Cross multiply
    205,183.20x = 307,774.80 × 57,439.20
  4. Step 4: Simplify right side
    205,183.20x = 17,678,338,292.16
  5. Step 5: Solve for x
    x = 17,678,338,292.16/205,183.20
  6. Step 6: Final answer
    x = 86,158.80

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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.