Home / 256,534.11-354,014.46-143,356.86

Finding the Fourth Proportional to 256,534.11, 354,014.46 and 143,356.86

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Solution

The fourth proportional to 256,534.11, 354,014.46 and 143,356.86 is: 197,831.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,534.11 : 354,014.46 = 143,356.86 : x
  2. Step 2: Convert to fraction form
    256,534.11/354,014.46 = 143,356.86/x
  3. Step 3: Cross multiply
    256,534.11x = 354,014.46 × 143,356.86
  4. Step 4: Simplify right side
    256,534.11x = 50,750,401,380.20
  5. Step 5: Solve for x
    x = 50,750,401,380.20/256,534.11
  6. Step 6: Final answer
    x = 197,831.01

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1.5x scale

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.