Home / 278,940.72-384,936.75-151,617

Finding the Fourth Proportional to 278,940.72, 384,936.75 and 151,617

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Solution

The fourth proportional to 278,940.72, 384,936.75 and 151,617 is: 209,230.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,940.72 : 384,936.75 = 151,617 : x
  2. Step 2: Convert to fraction form
    278,940.72/384,936.75 = 151,617/x
  3. Step 3: Cross multiply
    278,940.72x = 384,936.75 × 151,617
  4. Step 4: Simplify right side
    278,940.72x = 58,362,955,224.75
  5. Step 5: Solve for x
    x = 58,362,955,224.75/278,940.72
  6. Step 6: Final answer
    x = 209,230.68

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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.