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Finding the Fourth Proportional to 378,099.57, 567,205.72 and 134,921.70

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Solution

The fourth proportional to 378,099.57, 567,205.72 and 134,921.70 is: 202,402.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,099.57 : 567,205.72 = 134,921.70 : x
  2. Step 2: Convert to fraction form
    378,099.57/567,205.72 = 134,921.70/x
  3. Step 3: Cross multiply
    378,099.57x = 567,205.72 × 134,921.70
  4. Step 4: Simplify right side
    378,099.57x = 76,528,359,992.12
  5. Step 5: Solve for x
    x = 76,528,359,992.12/378,099.57
  6. Step 6: Final answer
    x = 202,402.66

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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.