Home / 256,534.36-354,014.85-143,357.11

Finding the Fourth Proportional to 256,534.36, 354,014.85 and 143,357.11

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Solution

The fourth proportional to 256,534.36, 354,014.85 and 143,357.11 is: 197,831.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,534.36 : 354,014.85 = 143,357.11 : x
  2. Step 2: Convert to fraction form
    256,534.36/354,014.85 = 143,357.11/x
  3. Step 3: Cross multiply
    256,534.36x = 354,014.85 × 143,357.11
  4. Step 4: Simplify right side
    256,534.36x = 50,750,545,793.08
  5. Step 5: Solve for x
    x = 50,750,545,793.08/256,534.36
  6. Step 6: Final answer
    x = 197,831.38

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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.