Home / 278,308.73-384,066.20-150,984.31

Finding the Fourth Proportional to 278,308.73, 384,066.20 and 150,984.31

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Solution

The fourth proportional to 278,308.73, 384,066.20 and 150,984.31 is: 208,358.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,308.73 : 384,066.20 = 150,984.31 : x
  2. Step 2: Convert to fraction form
    278,308.73/384,066.20 = 150,984.31/x
  3. Step 3: Cross multiply
    278,308.73x = 384,066.20 × 150,984.31
  4. Step 4: Simplify right side
    278,308.73x = 57,987,970,201.32
  5. Step 5: Solve for x
    x = 57,987,970,201.32/278,308.73
  6. Step 6: Final answer
    x = 208,358.43

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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.