Home / 278,921.68-384,910.56-151,597.28

Finding the Fourth Proportional to 278,921.68, 384,910.56 and 151,597.28

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Solution

The fourth proportional to 278,921.68, 384,910.56 and 151,597.28 is: 209,203.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,921.68 : 384,910.56 = 151,597.28 : x
  2. Step 2: Convert to fraction form
    278,921.68/384,910.56 = 151,597.28/x
  3. Step 3: Cross multiply
    278,921.68x = 384,910.56 × 151,597.28
  4. Step 4: Simplify right side
    278,921.68x = 58,351,394,901.55
  5. Step 5: Solve for x
    x = 58,351,394,901.55/278,921.68
  6. Step 6: Final answer
    x = 209,203.51

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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.