Home / 257,276.49-386,268.18-131,001.54

Finding the Fourth Proportional to 257,276.49, 386,268.18 and 131,001.54

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Solution

The fourth proportional to 257,276.49, 386,268.18 and 131,001.54 is: 196,682.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,276.49 : 386,268.18 = 131,001.54 : x
  2. Step 2: Convert to fraction form
    257,276.49/386,268.18 = 131,001.54/x
  3. Step 3: Cross multiply
    257,276.49x = 386,268.18 × 131,001.54
  4. Step 4: Simplify right side
    257,276.49x = 50,601,724,493.24
  5. Step 5: Solve for x
    x = 50,601,724,493.24/257,276.49
  6. Step 6: Final answer
    x = 196,682.27

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1.5x scale

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.