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Finding the Fourth Proportional to 366,905.35, 550,358.03 and 278,331.85

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Solution

The fourth proportional to 366,905.35, 550,358.03 and 278,331.85 is: 417,497.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,905.35 : 550,358.03 = 278,331.85 : x
  2. Step 2: Convert to fraction form
    366,905.35/550,358.03 = 278,331.85/x
  3. Step 3: Cross multiply
    366,905.35x = 550,358.03 × 278,331.85
  4. Step 4: Simplify right side
    366,905.35x = 153,182,168,652.26
  5. Step 5: Solve for x
    x = 153,182,168,652.26/366,905.35
  6. Step 6: Final answer
    x = 417,497.78

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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.