Home / 278,563.19-384,417.19-151,238.80

Finding the Fourth Proportional to 278,563.19, 384,417.19 and 151,238.80

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Solution

The fourth proportional to 278,563.19, 384,417.19 and 151,238.80 is: 208,709.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,563.19 : 384,417.19 = 151,238.80 : x
  2. Step 2: Convert to fraction form
    278,563.19/384,417.19 = 151,238.80/x
  3. Step 3: Cross multiply
    278,563.19x = 384,417.19 × 151,238.80
  4. Step 4: Simplify right side
    278,563.19x = 58,138,794,514.97
  5. Step 5: Solve for x
    x = 58,138,794,514.97/278,563.19
  6. Step 6: Final answer
    x = 208,709.54

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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.