Home / 278,815.62-384,764.94-151,491.72

Finding the Fourth Proportional to 278,815.62, 384,764.94 and 151,491.72

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Solution

The fourth proportional to 278,815.62, 384,764.94 and 151,491.72 is: 209,058.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,815.62 : 384,764.94 = 151,491.72 : x
  2. Step 2: Convert to fraction form
    278,815.62/384,764.94 = 151,491.72/x
  3. Step 3: Cross multiply
    278,815.62x = 384,764.94 × 151,491.72
  4. Step 4: Simplify right side
    278,815.62x = 58,288,702,556.30
  5. Step 5: Solve for x
    x = 58,288,702,556.30/278,815.62
  6. Step 6: Final answer
    x = 209,058.24

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1.5x scale

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.