Home / 378,072.27-566,174.68-281,778.61

Finding the Fourth Proportional to 378,072.27, 566,174.68 and 281,778.61

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Solution

The fourth proportional to 378,072.27, 566,174.68 and 281,778.61 is: 421,972.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,072.27 : 566,174.68 = 281,778.61 : x
  2. Step 2: Convert to fraction form
    378,072.27/566,174.68 = 281,778.61/x
  3. Step 3: Cross multiply
    378,072.27x = 566,174.68 × 281,778.61
  4. Step 4: Simplify right side
    378,072.27x = 159,535,914,347.60
  5. Step 5: Solve for x
    x = 159,535,914,347.60/378,072.27
  6. Step 6: Final answer
    x = 421,972.01

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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.