Home / 278,469.72-384,288.65-151,145.37

Finding the Fourth Proportional to 278,469.72, 384,288.65 and 151,145.37

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Solution

The fourth proportional to 278,469.72, 384,288.65 and 151,145.37 is: 208,580.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,469.72 : 384,288.65 = 151,145.37 : x
  2. Step 2: Convert to fraction form
    278,469.72/384,288.65 = 151,145.37/x
  3. Step 3: Cross multiply
    278,469.72x = 384,288.65 × 151,145.37
  4. Step 4: Simplify right side
    278,469.72x = 58,083,450,191.05
  5. Step 5: Solve for x
    x = 58,083,450,191.05/278,469.72
  6. Step 6: Final answer
    x = 208,580.85

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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.