Home / 278,540.98-384,388.13-163,824.46

Finding the Fourth Proportional to 278,540.98, 384,388.13 and 163,824.46

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Solution

The fourth proportional to 278,540.98, 384,388.13 and 163,824.46 is: 226,078.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,540.98 : 384,388.13 = 163,824.46 : x
  2. Step 2: Convert to fraction form
    278,540.98/384,388.13 = 163,824.46/x
  3. Step 3: Cross multiply
    278,540.98x = 384,388.13 × 163,824.46
  4. Step 4: Simplify right side
    278,540.98x = 62,972,177,827.66
  5. Step 5: Solve for x
    x = 62,972,177,827.66/278,540.98
  6. Step 6: Final answer
    x = 226,078.68

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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.