Home / 278,742.96-384,783.04-188,221.52

Finding the Fourth Proportional to 278,742.96, 384,783.04 and 188,221.52

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Solution

The fourth proportional to 278,742.96, 384,783.04 and 188,221.52 is: 259,825.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,742.96 : 384,783.04 = 188,221.52 : x
  2. Step 2: Convert to fraction form
    278,742.96/384,783.04 = 188,221.52/x
  3. Step 3: Cross multiply
    278,742.96x = 384,783.04 × 188,221.52
  4. Step 4: Simplify right side
    278,742.96x = 72,424,448,659.02
  5. Step 5: Solve for x
    x = 72,424,448,659.02/278,742.96
  6. Step 6: Final answer
    x = 259,825.21

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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.