Home / 257,433.39-386,261.19-139,188.24

Finding the Fourth Proportional to 257,433.39, 386,261.19 and 139,188.24

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Solution

The fourth proportional to 257,433.39, 386,261.19 and 139,188.24 is: 208,842.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,433.39 : 386,261.19 = 139,188.24 : x
  2. Step 2: Convert to fraction form
    257,433.39/386,261.19 = 139,188.24/x
  3. Step 3: Cross multiply
    257,433.39x = 386,261.19 × 139,188.24
  4. Step 4: Simplify right side
    257,433.39x = 53,763,015,216.41
  5. Step 5: Solve for x
    x = 53,763,015,216.41/257,433.39
  6. Step 6: Final answer
    x = 208,842.43

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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.