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Finding the Fourth Proportional to 355,819.60, 533,729.40 and 119,137.60

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Solution

The fourth proportional to 355,819.60, 533,729.40 and 119,137.60 is: 178,706.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,819.60 : 533,729.40 = 119,137.60 : x
  2. Step 2: Convert to fraction form
    355,819.60/533,729.40 = 119,137.60/x
  3. Step 3: Cross multiply
    355,819.60x = 533,729.40 × 119,137.60
  4. Step 4: Simplify right side
    355,819.60x = 63,587,239,765.44
  5. Step 5: Solve for x
    x = 63,587,239,765.44/355,819.60
  6. Step 6: Final answer
    x = 178,706.40

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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.