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Finding the Fourth Proportional to 274,932.62, 412,463.46 and 85,383.20

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Solution

The fourth proportional to 274,932.62, 412,463.46 and 85,383.20 is: 128,094.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,932.62 : 412,463.46 = 85,383.20 : x
  2. Step 2: Convert to fraction form
    274,932.62/412,463.46 = 85,383.20/x
  3. Step 3: Cross multiply
    274,932.62x = 412,463.46 × 85,383.20
  4. Step 4: Simplify right side
    274,932.62x = 35,217,448,035.55
  5. Step 5: Solve for x
    x = 35,217,448,035.55/274,932.62
  6. Step 6: Final answer
    x = 128,094.84

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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.