Home / 278,197.44-383,848.16-187,721.25

Finding the Fourth Proportional to 278,197.44, 383,848.16 and 187,721.25

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Solution

The fourth proportional to 278,197.44, 383,848.16 and 187,721.25 is: 259,011.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,197.44 : 383,848.16 = 187,721.25 : x
  2. Step 2: Convert to fraction form
    278,197.44/383,848.16 = 187,721.25/x
  3. Step 3: Cross multiply
    278,197.44x = 383,848.16 × 187,721.25
  4. Step 4: Simplify right side
    278,197.44x = 72,056,456,405.40
  5. Step 5: Solve for x
    x = 72,056,456,405.40/278,197.44
  6. Step 6: Final answer
    x = 259,011.93

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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.