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Finding the Fourth Proportional to 412,099.60, 618,149.40 and 252,667.30

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Solution

The fourth proportional to 412,099.60, 618,149.40 and 252,667.30 is: 379,000.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,099.60 : 618,149.40 = 252,667.30 : x
  2. Step 2: Convert to fraction form
    412,099.60/618,149.40 = 252,667.30/x
  3. Step 3: Cross multiply
    412,099.60x = 618,149.40 × 252,667.30
  4. Step 4: Simplify right side
    412,099.60x = 156,186,139,894.62
  5. Step 5: Solve for x
    x = 156,186,139,894.62/412,099.60
  6. Step 6: Final answer
    x = 379,000.95

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1.5x scale

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.