Home / 278,727.28-384,646.92-151,404.88

Finding the Fourth Proportional to 278,727.28, 384,646.92 and 151,404.88

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Solution

The fourth proportional to 278,727.28, 384,646.92 and 151,404.88 is: 208,940.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,727.28 : 384,646.92 = 151,404.88 : x
  2. Step 2: Convert to fraction form
    278,727.28/384,646.92 = 151,404.88/x
  3. Step 3: Cross multiply
    278,727.28x = 384,646.92 × 151,404.88
  4. Step 4: Simplify right side
    278,727.28x = 58,237,420,764.97
  5. Step 5: Solve for x
    x = 58,237,420,764.97/278,727.28
  6. Step 6: Final answer
    x = 208,940.51

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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.