Home / 278,819.88-384,771.60-151,495.44

Finding the Fourth Proportional to 278,819.88, 384,771.60 and 151,495.44

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Solution

The fourth proportional to 278,819.88, 384,771.60 and 151,495.44 is: 209,063.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,819.88 : 384,771.60 = 151,495.44 : x
  2. Step 2: Convert to fraction form
    278,819.88/384,771.60 = 151,495.44/x
  3. Step 3: Cross multiply
    278,819.88x = 384,771.60 × 151,495.44
  4. Step 4: Simplify right side
    278,819.88x = 58,291,142,841.50
  5. Step 5: Solve for x
    x = 58,291,142,841.50/278,819.88
  6. Step 6: Final answer
    x = 209,063.80

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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.