Home / 278,327.68-384,091.20-151,000.96

Finding the Fourth Proportional to 278,327.68, 384,091.20 and 151,000.96

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Solution

The fourth proportional to 278,327.68, 384,091.20 and 151,000.96 is: 208,380.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,327.68 : 384,091.20 = 151,000.96 : x
  2. Step 2: Convert to fraction form
    278,327.68/384,091.20 = 151,000.96/x
  3. Step 3: Cross multiply
    278,327.68x = 384,091.20 × 151,000.96
  4. Step 4: Simplify right side
    278,327.68x = 57,998,139,927.55
  5. Step 5: Solve for x
    x = 57,998,139,927.55/278,327.68
  6. Step 6: Final answer
    x = 208,380.78

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1.5x scale

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.