Home / 278,556.26-384,406.56-151,231.82

Finding the Fourth Proportional to 278,556.26, 384,406.56 and 151,231.82

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Solution

The fourth proportional to 278,556.26, 384,406.56 and 151,231.82 is: 208,699.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,556.26 : 384,406.56 = 151,231.82 : x
  2. Step 2: Convert to fraction form
    278,556.26/384,406.56 = 151,231.82/x
  3. Step 3: Cross multiply
    278,556.26x = 384,406.56 × 151,231.82
  4. Step 4: Simplify right side
    278,556.26x = 58,134,501,766.71
  5. Step 5: Solve for x
    x = 58,134,501,766.71/278,556.26
  6. Step 6: Final answer
    x = 208,699.32

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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.