Home / 278,914.08-384,904.44-151,589.70

Finding the Fourth Proportional to 278,914.08, 384,904.44 and 151,589.70

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Solution

The fourth proportional to 278,914.08, 384,904.44 and 151,589.70 is: 209,195.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,914.08 : 384,904.44 = 151,589.70 : x
  2. Step 2: Convert to fraction form
    278,914.08/384,904.44 = 151,589.70/x
  3. Step 3: Cross multiply
    278,914.08x = 384,904.44 × 151,589.70
  4. Step 4: Simplify right side
    278,914.08x = 58,347,548,588.27
  5. Step 5: Solve for x
    x = 58,347,548,588.27/278,914.08
  6. Step 6: Final answer
    x = 209,195.42

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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.