Home / 278,927.31-384,919.66-165,750.06

Finding the Fourth Proportional to 278,927.31, 384,919.66 and 165,750.06

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Solution

The fourth proportional to 278,927.31, 384,919.66 and 165,750.06 is: 228,735.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,927.31 : 384,919.66 = 165,750.06 : x
  2. Step 2: Convert to fraction form
    278,927.31/384,919.66 = 165,750.06/x
  3. Step 3: Cross multiply
    278,927.31x = 384,919.66 × 165,750.06
  4. Step 4: Simplify right side
    278,927.31x = 63,800,458,390.82
  5. Step 5: Solve for x
    x = 63,800,458,390.82/278,927.31
  6. Step 6: Final answer
    x = 228,735.07

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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.