Home / 278,694.20-384,595.88-151,370.70

Finding the Fourth Proportional to 278,694.20, 384,595.88 and 151,370.70

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Solution

The fourth proportional to 278,694.20, 384,595.88 and 151,370.70 is: 208,890.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,694.20 : 384,595.88 = 151,370.70 : x
  2. Step 2: Convert to fraction form
    278,694.20/384,595.88 = 151,370.70/x
  3. Step 3: Cross multiply
    278,694.20x = 384,595.88 × 151,370.70
  4. Step 4: Simplify right side
    278,694.20x = 58,216,546,815.86
  5. Step 5: Solve for x
    x = 58,216,546,815.86/278,694.20
  6. Step 6: Final answer
    x = 208,890.42

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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.