Home / 278,983.20-384,992.28-151,662

Finding the Fourth Proportional to 278,983.20, 384,992.28 and 151,662

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Solution

The fourth proportional to 278,983.20, 384,992.28 and 151,662 is: 209,291.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,983.20 : 384,992.28 = 151,662 : x
  2. Step 2: Convert to fraction form
    278,983.20/384,992.28 = 151,662/x
  3. Step 3: Cross multiply
    278,983.20x = 384,992.28 × 151,662
  4. Step 4: Simplify right side
    278,983.20x = 58,388,699,169.36
  5. Step 5: Solve for x
    x = 58,388,699,169.36/278,983.20
  6. Step 6: Final answer
    x = 209,291.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.