Home / 256,556.20-384,251.10-131,751.40

Finding the Fourth Proportional to 256,556.20, 384,251.10 and 131,751.40

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Solution

The fourth proportional to 256,556.20, 384,251.10 and 131,751.40 is: 197,327.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,556.20 : 384,251.10 = 131,751.40 : x
  2. Step 2: Convert to fraction form
    256,556.20/384,251.10 = 131,751.40/x
  3. Step 3: Cross multiply
    256,556.20x = 384,251.10 × 131,751.40
  4. Step 4: Simplify right side
    256,556.20x = 50,625,620,376.54
  5. Step 5: Solve for x
    x = 50,625,620,376.54/256,556.20
  6. Step 6: Final answer
    x = 197,327.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.