Home / 278,695.08-384,533.33-163,978.73

Finding the Fourth Proportional to 278,695.08, 384,533.33 and 163,978.73

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Solution

The fourth proportional to 278,695.08, 384,533.33 and 163,978.73 is: 226,251.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,695.08 : 384,533.33 = 163,978.73 : x
  2. Step 2: Convert to fraction form
    278,695.08/384,533.33 = 163,978.73/x
  3. Step 3: Cross multiply
    278,695.08x = 384,533.33 × 163,978.73
  4. Step 4: Simplify right side
    278,695.08x = 63,055,285,795.51
  5. Step 5: Solve for x
    x = 63,055,285,795.51/278,695.08
  6. Step 6: Final answer
    x = 226,251.88

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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.