Home / 355,845.40-533,120.10-168,443.80

Finding the Fourth Proportional to 355,845.40, 533,120.10 and 168,443.80

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Solution

The fourth proportional to 355,845.40, 533,120.10 and 168,443.80 is: 252,358.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,845.40 : 533,120.10 = 168,443.80 : x
  2. Step 2: Convert to fraction form
    355,845.40/533,120.10 = 168,443.80/x
  3. Step 3: Cross multiply
    355,845.40x = 533,120.10 × 168,443.80
  4. Step 4: Simplify right side
    355,845.40x = 89,800,775,500.38
  5. Step 5: Solve for x
    x = 89,800,775,500.38/355,845.40
  6. Step 6: Final answer
    x = 252,358.96

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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.