Home / 278,629.32-384,606.56-165,451.26

Finding the Fourth Proportional to 278,629.32, 384,606.56 and 165,451.26

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Solution

The fourth proportional to 278,629.32, 384,606.56 and 165,451.26 is: 228,380.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,629.32 : 384,606.56 = 165,451.26 : x
  2. Step 2: Convert to fraction form
    278,629.32/384,606.56 = 165,451.26/x
  3. Step 3: Cross multiply
    278,629.32x = 384,606.56 × 165,451.26
  4. Step 4: Simplify right side
    278,629.32x = 63,633,639,956.27
  5. Step 5: Solve for x
    x = 63,633,639,956.27/278,629.32
  6. Step 6: Final answer
    x = 228,380.99

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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.