Home / 278,769.90-384,659.37-164,106.30

Finding the Fourth Proportional to 278,769.90, 384,659.37 and 164,106.30

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Solution

The fourth proportional to 278,769.90, 384,659.37 and 164,106.30 is: 226,441.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,769.90 : 384,659.37 = 164,106.30 : x
  2. Step 2: Convert to fraction form
    278,769.90/384,659.37 = 164,106.30/x
  3. Step 3: Cross multiply
    278,769.90x = 384,659.37 × 164,106.30
  4. Step 4: Simplify right side
    278,769.90x = 63,125,025,971.03
  5. Step 5: Solve for x
    x = 63,125,025,971.03/278,769.90
  6. Step 6: Final answer
    x = 226,441.33

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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.