Home / 278,992.08-385,009.61-151,667.37

Finding the Fourth Proportional to 278,992.08, 385,009.61 and 151,667.37

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Solution

The fourth proportional to 278,992.08, 385,009.61 and 151,667.37 is: 209,301.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,992.08 : 385,009.61 = 151,667.37 : x
  2. Step 2: Convert to fraction form
    278,992.08/385,009.61 = 151,667.37/x
  3. Step 3: Cross multiply
    278,992.08x = 385,009.61 × 151,667.37
  4. Step 4: Simplify right side
    278,992.08x = 58,393,394,215.09
  5. Step 5: Solve for x
    x = 58,393,394,215.09/278,992.08
  6. Step 6: Final answer
    x = 209,301.26

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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.