Home / 278,636.25-384,520.16-151,311.85

Finding the Fourth Proportional to 278,636.25, 384,520.16 and 151,311.85

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Solution

The fourth proportional to 278,636.25, 384,520.16 and 151,311.85 is: 208,811.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,636.25 : 384,520.16 = 151,311.85 : x
  2. Step 2: Convert to fraction form
    278,636.25/384,520.16 = 151,311.85/x
  3. Step 3: Cross multiply
    278,636.25x = 384,520.16 × 151,311.85
  4. Step 4: Simplify right side
    278,636.25x = 58,182,456,188.88
  5. Step 5: Solve for x
    x = 58,182,456,188.88/278,636.25
  6. Step 6: Final answer
    x = 208,811.51

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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.