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Finding the Fourth Proportional to 381,380.92, 526,247.22 and 228,383.28

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Solution

The fourth proportional to 381,380.92, 526,247.22 and 228,383.28 is: 315,133.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,380.92 : 526,247.22 = 228,383.28 : x
  2. Step 2: Convert to fraction form
    381,380.92/526,247.22 = 228,383.28/x
  3. Step 3: Cross multiply
    381,380.92x = 526,247.22 × 228,383.28
  4. Step 4: Simplify right side
    381,380.92x = 120,186,066,194.48
  5. Step 5: Solve for x
    x = 120,186,066,194.48/381,380.92
  6. Step 6: Final answer
    x = 315,133.92

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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.