Home / 278,893.26-384,878.39-151,577.06

Finding the Fourth Proportional to 278,893.26, 384,878.39 and 151,577.06

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Solution

The fourth proportional to 278,893.26, 384,878.39 and 151,577.06 is: 209,179.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,893.26 : 384,878.39 = 151,577.06 : x
  2. Step 2: Convert to fraction form
    278,893.26/384,878.39 = 151,577.06/x
  3. Step 3: Cross multiply
    278,893.26x = 384,878.39 × 151,577.06
  4. Step 4: Simplify right side
    278,893.26x = 58,338,732,131.46
  5. Step 5: Solve for x
    x = 58,338,732,131.46/278,893.26
  6. Step 6: Final answer
    x = 209,179.43

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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.