Home / 278,474.47-384,284.48-151,147.33

Finding the Fourth Proportional to 278,474.47, 384,284.48 and 151,147.33

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Solution

The fourth proportional to 278,474.47, 384,284.48 and 151,147.33 is: 208,577.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,474.47 : 384,284.48 = 151,147.33 : x
  2. Step 2: Convert to fraction form
    278,474.47/384,284.48 = 151,147.33/x
  3. Step 3: Cross multiply
    278,474.47x = 384,284.48 × 151,147.33
  4. Step 4: Simplify right side
    278,474.47x = 58,083,571,395.99
  5. Step 5: Solve for x
    x = 58,083,571,395.99/278,474.47
  6. Step 6: Final answer
    x = 208,577.73

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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.