Home / 278,608.47-384,481.26-151,284.10

Finding the Fourth Proportional to 278,608.47, 384,481.26 and 151,284.10

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Solution

The fourth proportional to 278,608.47, 384,481.26 and 151,284.10 is: 208,772.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,608.47 : 384,481.26 = 151,284.10 : x
  2. Step 2: Convert to fraction form
    278,608.47/384,481.26 = 151,284.10/x
  3. Step 3: Cross multiply
    278,608.47x = 384,481.26 × 151,284.10
  4. Step 4: Simplify right side
    278,608.47x = 58,165,901,385.97
  5. Step 5: Solve for x
    x = 58,165,901,385.97/278,608.47
  6. Step 6: Final answer
    x = 208,772.91

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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.