Home / 278,727.90-384,644.43-151,403.37

Finding the Fourth Proportional to 278,727.90, 384,644.43 and 151,403.37

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Solution

The fourth proportional to 278,727.90, 384,644.43 and 151,403.37 is: 208,936.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,727.90 : 384,644.43 = 151,403.37 : x
  2. Step 2: Convert to fraction form
    278,727.90/384,644.43 = 151,403.37/x
  3. Step 3: Cross multiply
    278,727.90x = 384,644.43 × 151,403.37
  4. Step 4: Simplify right side
    278,727.90x = 58,236,462,953.73
  5. Step 5: Solve for x
    x = 58,236,462,953.73/278,727.90
  6. Step 6: Final answer
    x = 208,936.61

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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.