Home / 218,819.68-301,928.40-133,876.56

Finding the Fourth Proportional to 218,819.68, 301,928.40 and 133,876.56

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Solution

The fourth proportional to 218,819.68, 301,928.40 and 133,876.56 is: 184,723.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,819.68 : 301,928.40 = 133,876.56 : x
  2. Step 2: Convert to fraction form
    218,819.68/301,928.40 = 133,876.56/x
  3. Step 3: Cross multiply
    218,819.68x = 301,928.40 × 133,876.56
  4. Step 4: Simplify right side
    218,819.68x = 40,421,135,558.30
  5. Step 5: Solve for x
    x = 40,421,135,558.30/218,819.68
  6. Step 6: Final answer
    x = 184,723.49

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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.